logo logo European Journal of Educational Research

EU-JER is is a, peer reviewed, online academic research journal.

Subscribe to

Receive Email Alerts

for special events, calls for papers, and professional development opportunities.

Subscribe

Publisher (HQ)

Eurasian Society of Educational Research
Eurasian Society of Educational Research
7321 Parkway Drive South, Hanover, MD 21076, USA
Eurasian Society of Educational Research
Headquarters
7321 Parkway Drive South, Hanover, MD 21076, USA

'multivariate analysis' Search Results

...

The aim of this study is to find out the influence of online project collaborative learning and achievement motivation on problem-solving ability in the area of citizenship. This study uses a quasi-experimental design. The total of study subjects is 71 students of higher education; consist of 36 students as the experimental group and 35 students as the control group. Data of problem-solving ability is obtained by using an essay test, while data of achievement motivation is obtained by using a questionnaire. Data analysis is done with ANOVA (Analysis of Variance). The study results show that online based-project collaborative learning strategy has a positive influence on civic problem-solving ability. There is a difference in civic problem-solving ability between students with high achievement motivation and students with low achievement motivation. Online project collaborative learning strategy and achievement motivation interact in influencing the civic problem-solving ability of students. It is recommended that further study corroborate this finding by testing again the effectiveness of using online-based project collaborative strategy in the aspect of problem-solving in a similar field of study.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.2.813
Pages: 813-823
cloud_download 516
visibility 623
8
Article Metrics
Views
516
Download
623
Citations
Crossref
8

Scopus
14

...

The aim of the study is to adapt Preschool Children’s Science Motivation Scale (PCSMS) developed by Oppermann et al. into Turkish and conduct the validity and reliability analyses. This scale is considered important in terms of evaluating the science motivation of preschool children through the science concepts they are familiar with, based on their daily life experiences. The research data were obtained from 303 children attending preschool education in central districts of Adana. The findings of exploratory factor analysis, a two-factor structure named self-confidence and enjoyment consist of 28 items was determined in accordance with the original structure of the scale. Confirmatory factor analysis showed that this two-factor structure showed good fit. Subsequently, the study proceeded to reliability analyses and Cronbach’s α and Composite Reliability values were calculated. In consequence of the study, it was seen that the original form of the scale and the goodness of fit and internal consistency values obtained within the scope of the adaptation form coincided. The findings of the study indicate that the Turkish version of the PCSMS is valid and reliable for Turkish preschoolers.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.2.891
Pages: 891-906
cloud_download 473
visibility 629
2
Article Metrics
Views
473
Download
629
Citations
Crossref
2

Scopus
1

...

People have needed mental health services more and more during Coronavirus disease (COVID-19) pandemic. Due to the contagious nature of the COVID-19 virus, online counseling has been preferred more during the COVID-19 pandemic. Those who need such mental health services might take actions to seek help by demanding psychological assistance from psychological counselors or mental health institutions. However, these people might avoid seeking and receiving such help when they think that they have a weak personality or they somehow will be criticized by the society or experience social stigma because they seek psychological help. This study aims to examine the mediating role of self-disclosure between attitudes towards online counselling and perception of social stigma due to receiving psychological help. Participants of the study consist of 519 adults who live in Turkey and are older than 18 years old.  The data for the study were collected through “Distress Disclosure Index”, “Online Counseling Attitudes Scale (OCAS)”, “Stigma Scale for Receiving Psychological Help (SSRPH)” and “Personal Information Form”. The hypothetical model developed in order to determine whether self-disclosure mediates in the relationship between perception of social stigma due to receiving psychological help and online psychological counselling attitudes was tested through SEM (Structural Equation Modeling). The results of the study revealed that self-disclosure play partial mediating role between perception of social stigma and value of online counselling and discomfort with online counselling.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.2.919
Pages: 919-932
cloud_download 566
visibility 648
3
Article Metrics
Views
566
Download
648
Citations
Crossref
3

Scopus
2

...

The primary purpose of this research was to determine the effect of principal instructional leadership behavior on several determinants: organizational commitment, efficacy, and teacher satisfaction through school health. Five instruments that had been used are the principal instructional management rating scale (PIMRS); organizational health inventory for elementary schools (OHI-E); online course questionnaire (OCQ); teacher satisfaction scale (TSS); teacher efficacy scale (TES). All of these instruments had high validity and reliability; with Cronbach’s alpha values of each was PIMRS (.83), OHI-E (.81), OCQ (.80), TSS (.86), and TES (.79). A total of 350 public primary school teachers in Surakarta had been selected as respondents in this study with satisfied random sampling. AMOS software version 6.0 is used to analyze CFA and SEM. The results of SEM analysis to the structural model built by the researcher was good, with Probability = .001; RMSEA = .043; GFI = .941; AGFI = .907; CMIN/DF = 1.522), so the relationship between the variables in the constructs was interpreted; (1) The Principal instructional leadership behavior had a significant direct influence on the school health, (2) The school health parameter had a significant direct influence on organizational commitment, efficacy, and teacher satisfaction, (3) The principal instructional leadership behavior did not have a significant direct effect on organizational commitment, efficacy, and teacher satisfaction through the variables and school health.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.3.1275
Pages: 1275-1286
cloud_download 431
visibility 534
0
Article Metrics
Views
431
Download
534
Citations
Crossref
0

Scopus
1

Digital Andragogical Competences of Ecuadorian Higher Education Teachers during the COVID-19 Pandemic

higher education technology teaching competences virtual education andragogy

Derling Jose Mendoza Velazco , Mercedes Navarro Cejas , Magda Francisca Cejas Martinez , Paola Gabriela Vinueza Naranjo , Vladimir Vega Falcón


...

The changes brought about in higher education by the Coronavirus disease (COVID-19) pandemic require effective action. Teachers must be trained to work on university platforms. The study allows us to analyse the current educational problems, which are found in many countries, not only in Ecuador. The research aimed to determine the virtual andragogical competencies of Ecuadorian university education during the COVID-19 pandemic. A mixed research approach was used. A quantitative analysis was applied first, followed by a qualitative analysis. The sample selection was participatory and non-probabilistic. The sample consisted of 1003 active higher education teachers in Ecuador. A questionnaire of 106 questions divided into four variables was applied. A multiple analysis of variance (MANOVA) was performed. The analyses demonstrated the need to apply four integral competencies. First the teacher must "Know how to be", through continuous ICT training. After the teacher has been trained, he/she must "Know". This process involves mastering educational technology. After updating knowledge, they must "Know how to live together". Develop critical and constructive communication. Then "Know how to do" by applying an effective guiding methodology. Teacher training under the competency-based approach is seen as a viable alternative.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.3.1341
Pages: 1341-1358
cloud_download 591
visibility 698
6
Article Metrics
Views
591
Download
698
Citations
Crossref
6

Scopus
12

...

The reason of to be of any educational model is to ensure that its students are self-regulated, which implies the setting of objectives, the monitoring of their actions in order to reach them, the control of their cognitive processes, the use of diverse learning and motivation skills. One way to collaborate in this is to evaluate the student's current situation in order to intervene. Due to the above, the purpose of the study is to determine validity and reliability of the scale Students’ Approaches to Learning (SAL) in Mexican students. The SAL was applied to 894 high school students. Considering the results, the SAL presents good functioning and acceptable psychometric properties. In relation to the internal structure, the results support the composition of the 14 sub-factors of SAL, which is consistent with the original study. The results obtained have enough empirical support to interpret the construct of learning approaches from a multidimensional point of view.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.3.1589
Pages: 1589-1597
cloud_download 219
visibility 278
0
Article Metrics
Views
219
Download
278
Citations
Crossref
0

Scopus
0

Cyberslacking Behavior and Its Relationship with Academic Performance: A Study of Students in Indonesia

academic performance cyberslacking media multi-tasking efficacy self-regulation

Meily Margaretha , Sherlywati , Yani Monalisa , Ana Mariana , Imelda Junita , Martalena , Dini Iskandar , Nur


...

Students are aware of the use of technology in the learning process, and they are generally referred to as digital natives. However, there are challenges associated with the availability of internet access as a learning process to both university students and teachers inside and outside the classroom. One of such challenges is students’ ability to access unrelated activities which is known as cyberslacking. In the education sector, this process refers to the use of technology for unrelated academic activities. Studies associated with this activity are significantly conducted in western countries, but it is still limited to the Indonesia education environment. Therefore, this research aims to investigate the cyberslacking behavior of students in Indonesia and its relationship to their academic performances. It also determines the relationship between media multi-tasking efficacy and self-regulated learning. The results showed that there is a significant influence between media multi-tasking efficacy and self-regulated learning with cyberslacking. Furthermore, there is a negative influence between cyberslacking and the academic performance of students in Indonesia. This research adds references to studies on cyberslacking in the scope of education and provides input for universities to develop the management of information and communication technology used in the learning process.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.4.1881
Pages: 1881-1892
cloud_download 565
visibility 467
4
Article Metrics
Views
565
Download
467
Citations
Crossref
4

Scopus
5

...

Within the context of Self-Regulated Learning (SRL), a process of directing oneself to facilitate individual learning more effectively, the SRL instrument development is deemed necessary to measure students’ self-reliance in learning mathematics in the science, technology, engineering, and mathematics (STEM) framework. The research aims to develop and test the validity and reliability of an SRL instrument, namely a 14-item SRL questionnaire accommodating four aspects, namely planning, self-monitoring, self-controlling, and evaluation. The study involved 420 junior high school students in East Java, Central Java, and Yogyakarta Special Region. The results show that the questionnaire was developed as planned and that planning, monitoring, controlling, and evaluating aspects can reflect the SRL variable in a valid, reliable, and significant way supported by each aspect's behavior indicator. The SRL variable theoretical model corresponds (good fit) with the empirical data, and all of the items are likely valid and reliable to assess student's mathematics SRL in the STEM framework. The SRL questionnaire was also found suitable for use by teachers to measure junior high school students’ self-reliance in SRL.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.10.4.2067
Pages: 2067-2077
cloud_download 613
visibility 547
3
Article Metrics
Views
613
Download
547
Citations
Crossref
3

Scopus
4

...

This study was conducted to corroborate in understanding the teachers’ beliefs about assessment practices. The prior studies related to teachers’ assessment beliefs in mathematics have been done to assess teachers’ beliefs in the general context of mathematics teaching. This study developed an instrument to assess teachers’ assessment beliefs of mathematical thinking. The research aimed to develop and validate a scale of assessment beliefs of mathematical thinking by using the confirmatory factor analysis. The first draft of the scale contained 25 items. The sample of the study consisted of 537 mathematics teachers from public schools in Oman. The instrument was a questionnaire with a 5-point Likert scale. The scale was validated by asking a number of experts in mathematics educational measurement and evaluation. Exploratory and confirmatory factor analysis was applied to test the model of assessment beliefs of mathematical thinking scale using AMOS 25.0. All constructs had acceptable reliability. The model had a good model fit for the assessment beliefs of mathematical thinking scale which obtainable from the fit indices tests. The findings revealed that all fit criteria indices were realized. The results also showed acceptable validity and construct reliability for the scale.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.1.179
Pages: 179-191
cloud_download 450
visibility 668
2
Article Metrics
Views
450
Download
668
Citations
Crossref
2

Scopus
1

...

This paper investigates the quantitative literacy and reasoning (QLR) of freshmen students pursuing a Science, Technology, Engineering, and Mathematics (STEM)–related degree but do not necessarily have a Senior High School (SHS) STEM background. QLR is described as a multi-faceted skill focused on the application of Mathematics and Statistics rather than just a mere mastery of the content domains of these fields. This article compares the QLR performance between STEM and non-STEM SHS graduates. Further, this quantitative-correlational study involves 255 freshman students, of which 115 have non-STEM academic background from the SHS. Results reveal that students with a SHS STEM background had significantly higher QLR performance. Nevertheless, this difference does not cloud the fact that their overall QLR performance marks the lowest when compared to results of similar studies. This paper also shows whether achievement in SHS courses such as General Mathematics, and Statistics and Probability are significant predictors of QLR. Multivariate regression analysis discloses that achievement in the latter significantly relates to QLR. However, the low coefficient of determination (10.30%) suggests that achievement in these courses alone does not account to the students’ QLR. As supported by a deeper investigation of the students’ answers, it is concluded that QLR indeed involves complex processes and is more than just being proficient in Mathematics and Statistics.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.1.231
Pages: 231-242
cloud_download 1335
visibility 1114
2
Article Metrics
Views
1335
Download
1114
Citations
Crossref
2

Scopus
0

The Influence of Gender and Interest on the Use of Learning Strategies in Biology Lessons

biology lessons gender interest in biology learning strategies

Ricarda Corinna Isaak , Svea Isabel Kleinert , Matthias Wilde


...

For biology students, the diversity, complexity, and abundance of content in this field yield a heavy study load. Hence, appropriate learning strategies are key in supporting learners’ academic success. In biology, the factors gender and interest hold a unique position within the natural sciences, as there is an academic imbalance to the disadvantage of male students. In the present study, we examined the influence of gender and interest as well as its interdependences on the students’ use of learning strategies for biology learning. A total of 180 seventh through tenth grade students (Mage=14.47; SD=1.35; 60% female) from four general-track secondary schools located in Germany participated in this study. Data on the students’ level of interest and the use of learning strategies in biology lessons were collected. We used multivariate analysis of covariance with the students’ age as the covariate to analyse our data. Results revealed a significant effect of gender on the students’ use of the learning strategies rehearsal, organisation, effort, and time management. With regard to elaboration and effort, the effects of interest were found to be significant. The gender gap regarding learning strategy use was narrower for students with high levels of interest. These findings might have implications for beneficial teacher behaviour in biology.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.1.587
Pages: 587-597
cloud_download 883
visibility 654
2
Article Metrics
Views
883
Download
654
Citations
Crossref
2

Scopus
0

...

Computational thinking (CT) is a method for solving complex problems, but also gives people an inventive inspiration to adapt to our smart and changing society. Globally it has been considered as vital abilities for solving genuine issues successfully and efficiently in the 21st century. Recent studies have revealed that the nurture of CT mainly centered on measuring the technical skill. There is a lack of conceptualization and instruments that cogitate on CT disposition and attitudes. This study attends to these limitations by developing an instrument to measure CT concerning dispositions and attitudes. The instruments' validity and reliability testing were performed with the participation from secondary school students in Malaysia. The internal consistency reliability, standardized residual variance, construct validity and composite reliability were examined. The result revealed that the instrument validity was confirmed after removing items. The reliability and validity of the instrument have been verified. The findings established that all constructs are useful for assessing the disposition of computer science students. The implications for psychometric assessment were evident in terms of giving empirical evidence to corroborate theory-based constructs and also validating items' quality to appropriately represent the measurement.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.2.639
Pages: 639-652
cloud_download 719
visibility 680
7
Article Metrics
Views
719
Download
680
Citations
Crossref
7

Scopus
4

...

Students' academic self-concept is a concerning concept in educational research. The purpose of this research is to examine the simultaneous influence and relationship of learning motivation, democratic parenting, and peer relations with academic self-concept in students. This is a correlational research with a cluster random sampling method used to collect data from 962 students. The result showed that learning motivation, democratic parenting, and peer relations had a partial and simultaneous relationship with students' academic self-concept. Furthermore, support from guidance and counselors, homeroom teachers, and parents is essential for students to actualize and develop their character optimally and effectively.  

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.3.1629
Pages: 1629-1641
cloud_download 495
visibility 494
2
Article Metrics
Views
495
Download
494
Citations
Crossref
2

Scopus
0

...

In the last decade, vocational education in Indonesia has experienced problems in making career decisions for students, which was exacerbated by the COVID-19 pandemic. Therefore, this research aims to examine the role of self-efficacy and mediate digital literacy, social environment, and counselling guidance in influencing career decision-making. This is an ex-post-facto research design with data collected from a sample of 566 vocational education students in Indonesia through a questionnaire method distributed online using Google Form. The collected data was then analyzed using structural equation modelling (SEM) with path analysis and bootstrap methods. The results revealed that self-efficacy plays a vital role in mediating digital literacy and guiding students in career decision-making. On the other hand, digital literacy, guidance, and counselling have a significant direct effect on self-efficacy and career decision-making. Meanwhile, the social environment only has a significant direct effect on students’ career decision-making. The real role of all elements of vocational education in strengthening self-efficacy, growing digital literacy, monitoring social environment interactions, and providing counselling guidance to students is needed to increase optimism and the quality of career decision-making in vocational education.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.3.1669
Pages: 1669-1682
cloud_download 663
visibility 449
7
Article Metrics
Views
663
Download
449
Citations
Crossref
7

Scopus
11

...

The role of preschool teachers in supporting children’s language development is unquestionably substantial. To ensure the quality of preschool teachers’ performance in this specific task, various assessing instruments have been developed and justified in recent years. This study joins such efforts by investigating a new scale based on the “Framework for assessing preschool teacher competence in promoting children’s language development” proposed by a previous research. The scale’s psychometric properties are examined with a sample of 685 Vietnamese preschool teachers. The results supported the four-factor model suggested by the original authors and confirmed its reliability and validity. Finally, further usages of the scale are discussed.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.4.2167
Pages: 2167-2179
cloud_download 262
visibility 403
0
Article Metrics
Views
262
Download
403
Citations
Crossref
0

Scopus
0

Development of a Survey to Assess Conceptual Understanding of Quantum Mechanics among Moroccan Undergraduates

conceptual understanding learning difficulties quantum mechanics teaching/learning

Khalid Ait bentaleb , Saddik Dachraoui , Taoufik Hassouni , El mehdi Alibrahmi , Elmahjoub Chakir , Aimad Belboukhari


...

We developed a Quantum Mechanics Conceptual Understanding Survey (QMCUS) in this study. The survey was conducted using a quantitative methodology. A multiple-choice survey of 35 questions was administered to 338 undergraduate students. Three experienced quantum mechanics instructors examined the validity of the survey. The reliability of our survey was measured using Cronbach's alpha, the Fergusson delta index, the discrimination index, and the point biserial correlation coefficient. These indices showed that the developed survey is reliable. The statistical analysis of the students' results using SPSS shows that the scores obtained by the students have a normal distribution, around the score of 7.14. The results of the t-test show that the students' scores are below the required threshold, which means that it is still difficult for the students to understand the concepts of quantum mechanics. The obtained results allow us to draw some conclusions. The students' difficulties in understanding the quantum concepts are due to the nature of these concepts; they are abstract and counterintuitive. In addition, the learners did not have frequent contact with the subatomic world, which led them to adopt misconceptions. Moreover, students find it difficult to imagine and conceptualize quantum concepts. Therefore, subatomic phenomena are still explained with classical paradigms. Another difficulty is the lack of prerequisites and the difficulties in using the mathematical formalism and its translation into Dirac notation.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.4.2219
Pages: 2219-2243
cloud_download 251
visibility 384
2
Article Metrics
Views
251
Download
384
Citations
Crossref
2

Scopus
1

Multivariate Analysis of Co-creation Activities in University Education

co-creation factor analysis multivariate analysis questionnaire university students

Eirini Vardakosta , Georgios Priniotakis , Michail Papoutsidakis , Marisa Sigala , Dimitrios Nikolopoulos


...

This paper investigates the viewpoints and perspectives of 179 undergraduate students engaged in a co-creation project regarding their anticipated progress, exploring, simultaneously, the affecting factors. The students attended the physics course in the Department of Industrial Design and Production Engineering at the University of West Attica, Greece. The investigation is implemented through a questionnaire that appraises the students' co-creation expectations in association with collected demographic data via twenty-two close-ended questions (Q1-Q22). Several statistical data sets are presented, including descriptive and correlation statistics and principal component and exploratory factor analyses. The majority of the replies are provided by male participants in their first year of study, with an average age of between 18 and 19. The correlation coefficient between the questions ranges from -.04 to.73, with the maximum occurring between the questions Q19 and Q20. Factor analysis justified by KMO (.862) and Bartlett’s sphericity (1749.843, p= .000) tests indicates five principal components within the following factors determining the undergraduate co-creation activities: responsible behaviour, feedback, helping, tolerance, and personal interaction. The above findings may contribute to the implementation of students’ co-creation as they are valuable tools for the design and pre-requisites for a successful implementation.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.11.4.2413
Pages: 2413-2428
cloud_download 230
visibility 242
2
Article Metrics
Views
230
Download
242
Citations
Crossref
2

Scopus
2

...

Several supporting factors are alleged to influence the performance of teachers. This study aimed to describe the relationship between each research variable and teachers’ performance, either directly or indirectly. This research was conducted through surveys and quantitative approaches that included correlational research types. The research subjects were Hindu religion teachers in 119 state junior high schools, consisting of 517 teachers. The sample of 256 people was determined using the Krejcie and Morgan formula and the Warwick and Lininger formula. The samples from each sub-population were determined with the proportional random sampling technique, and the personal sampling of sample members was determined with the use of lottery techniques. The data were collected using a five-point Likert scale model questionnaire with high validity and reliability. The data analysis technique used in this study was structural equation modelling. The conceptual model met the standards of comprehensive goodness-of-fit requirements. The results of the study show that the average levels of Hindu principals’ leadership, the emotional intelligence of teachers, supervision of school superintendents, school culture, teachers’ work motivation, and the performance of Hindu religion teachers are in the high category. In addition, the hypothesis testing results show there is a significant direct and indirect relationship between the variables in the state junior high school.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.12.1.99
Pages: 99-117
cloud_download 319
visibility 401
0
Article Metrics
Views
319
Download
401
Citations
Crossref
0

Scopus
0

...

The purpose of this study was to explore the factor structure of a measurement and to evaluate its internal reliability. Overall, 525 math-majoring elementary school teachers volunteered to participate in this study by answering online survey questions via Google Form. These samples were randomly partitioned into 262 participants for exploratory factor analysis (EFA) and 263 observations for confirmatory factor analysis (CFA). The EFA tended to largely prefer a four-factor solution, which was proven to explain over 68% of the variation in the data. Awareness, effectiveness, engagement, and opportunity were the provisional labels for these hidden variables. The CFA results verified and validated the four-factor model, with all test measures exceeding the specified thresholds, suggesting an acceptable and excellent fit. The results of this study, on the one hand, provide four key areas for realistic math teachers, educators, and policymakers to discuss as opposed to examining individual indicators, and on the other hand, they serve as a foundation for interested researchers to conduct additional analyses, such as multivariate linear regression or complement for cluster analysis.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.12.1.253
Pages: 253-263
cloud_download 227
visibility 347
0
Article Metrics
Views
227
Download
347
Citations
Crossref
0

Scopus
1

...

The evolution of the COVID-19 pandemic has affected various aspects of human life, with numerous activities carried out through networks, including education. Lecturers need to change their teaching strategies to make students able to accept the material provided. On the other hand, students must manage their lives without being limited by space and time to avoid stress and cyberloafing, especially in the academic field. Cyberloafing is the act of accessing the internet during study hours for personal interests. Therefore, this research aims to determine the effect of academic stress on cyberloafing and whether fatigue is a mediating variable between both factors. Data were collected from 284 students studying in Bandung, West Java, Indonesia. The results showed that the academic stress felt by students has a positive and significant effect on cyberloafing behavior. Although fatigue positively affects both factors, it does not mediate the relationship between them. The managerial implications in this research are expected to be used as material for evaluating online learning methods for students, as well as to make them aware of the negative impact of cyberloafing behavior during lectures.

description Abstract
visibility View cloud_download PDF
10.12973/eu-jer.12.1.525
Pages: 525-535
cloud_download 139
visibility 272
0
Article Metrics
Views
139
Download
272
Citations
Crossref
0

Scopus
0

...