1. Adelabu, F.M, Makgato, M., and Ramaligela, M.S. (2019). The Importance of Dynamic Geometry Computer Software on Learners’ Performance in Geometry. The Electronic Journal of e-Learning, 17(1), pp. 52-63
2. Akugizibwe, E., & Ahn, J. Y. (2020). Perspectives for effective integration of e-learning tools in university mathematics instruction for developing countries. Education and Information Technologies, 25(2), 889-903.
3. Albelbisi, N. A., & Yusop, F. D. (2018). Secondary School Students' Use of and Attitudes toward Online Mathematics Homework. Turkish Online Journal of Educational Technology-TOJET, 17(1), 144-153.
4. Altakhyneh, B. H. (2018). Attitudes towards using mobile applications for teaching mathematics in open learning systems. International Journal of E-Learning & Distance Education/Revue internationale du e-learning et la formation à distance, 33(1).
5. Ardiç, M. A., & Isleyen, T. (2018). The Effect of Mathematics Instruction through Computer Algebra Systems on the Academic Achievements of Secondary Education Students: Turkey Example. Journal of Education and e-Learning Research, 5(3), 165-173.
6. Arifin, F., & Herman, T. (2017). The Influence of E-Learning Model Web Enhanced Course to Conceptual Understanding and Self-Regulated Learning in Mathematics for Elementary School Students. TARBIYA: Journal of Education in Muslim Society, 4(1), 45-52.
7. Aung, T. N., & Khaing, S. S. (2016). Challenges of Implementing E-Learning in Develop-ing Countries: A Review. In Genetic and Evolutionary Computing, Advances in Intel-ligent Systems and Computing (pp. 405-411). Switzerland: Springer International Pub-lishing. https://doi.org/10.1007/978-3-319-23207-2_41
8. Awofala, A. O., Akinoso, S. O., & Fatade, A. O. (2017). Attitudes towards Computer and Computer Self-Efficacy as Predictors of Preservice Mathematics Teachers' Computer Anxiety. Acta Didactica Napocensia, 10(3), 91-108.
9. Bozkurt, G. (2016). Mathematics Teachers and ICT: Factors Affecting Pre-Service Use in School Placements. International Journal of Research in Education and Science, 2(2), 453-468.
10. Brodahl, C., & Wathne, U. (2016). In-service teachers’ perceptions of the design and quality of mathematics videos in their on-line learning. Journal of the International Society for Teacher Education. 2016, 20 (2), 67-78.
11. Buchori, A., Setyosari, P., Dasna, I. W., Ulfa, S., Degeng, I. N. S., Sa’dijah, C., ... & Karangtempel, S. T. (2017). Effectiveness of Direct Instruction Learning Strategy Assisted by Mobile Augmented Reality and Achievement Motivation on Students Cognitive Learning Results. Asian Social Science, 13(9), 137-144.
12. Fomina, T., Vorobjev, G., & Kalitvin, V. (2016). Distance Learning Approaches in the Mathematical Training of Pedagogical Institutes's Students. International Journal of Environmental and Science Education, 11(18), 12145-12154.
13. GebreYohannes, H. M., Bhatti, A. H., & Hasan, R. (2016). Impact of multimedia in Teaching Mathematics. International Journal of Mathematics Trends and Technology, 39(1), 80-83.
14. Iskrenovic-Momcilovic, O. (2020). Improving Geometry Teaching with Scratch. International Electronic Journal of Mathematics Education, 15(2), em0582.
15. Khan, K. S., Kunz, R., Kleijnen, J., & Antes, G. (2003). Five Steps to Conducting a Systematic Review. Journal of the Royal Society of Medicine, 96(3), 118–121.
16. Jacinto, H., & Carreira, S. (2016). Mathematical Problem Solving with Technology: the Techno-Mathematical Fluency of a Student-with-GeoGebra. International Journal of Science and Mathematics Education. International Journal of Science and Mathematics Education, 15(6), 1115-1136. https://doi.org/10.1007/s10763-016-9728-8
17. Mailizar M., Almanthari, A., Maulina, S., & Bruce, S. (2020). Secondary School Mathematics Teachers’ Views on E-learning Implementation Barriers during the COVID-19 Pandemic: The Case of Indonesia. Eurasia Journal of Mathematics, Science and Technology Education, 16(7), em1860.
18. Malaysia, K. P. (2013). Pelan Pembangunan Pendidikan Malaysia 2013-2025. Online (www. moe. gov. my).
19. Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2009). Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. PLoS Med 6(7): e1000097. doi:10.1371/journal.pmed1000097
20. Msomi, A. M., & Bansilal, S. (2018). The experiences of first-year students in mathematics in using an e-learning platform at a university of technology. South African Journal of Higher Education, 32(5), 124-129.
21. Nasrullah, A., Marlina, M., & Dwiyanti, W. (2018). Development of student worksheet-based college e-learning through Edmodo to maximize the results of learning and motivation in economic mathematics learning. International Journal of Emerging Technologies in Learning (iJET), 13(12), 211-229.
22. Panteli, P., & Panaoura, A. (2020). The Effectiveness of Using Mobile Learning Methods in Geometry for Students with Different Initial Mathematical Performance. Social Education Research, 1-10.
23. Razali, N., Othman, H., Zainuri, N. A., Hamzah, F. M., Asshaari, I., Ariff, F. H. M., & Nopiah, Z. M. (2016). Modern or traditional teaching strategy in learning engineering mathematics course. Journal of Engineering Science and Technology, 11(Special Issue onpendidikankejuruteraandanalambina), 13-20.
24. Richard Mallett, Jessica Hagen-Zanker, Rachel Slater & Maren Duvendack (2012) The benefits and challenges of using systematic reviews in international development research, Journal of Development Effectiveness, 4:3, 445-455, DOI:10.1080/19439342.2012.711342
25. Shida, N., Sharifah, S., Hanifah, H., Norulhuda, N., & Halim, A. (2019). The Influence of E-Learning towards Metacognitive Enhancement in Mathematical Problem Solving. International Journal of Emerging Technologies in Learning (iJET), 14(20), 165-173.
26. The, M. M., & Usagawa, T. (2018). Change in E-learning Readiness and Challenge for Myanmar Higher Education. Creative Education, 9, 1277-1286. https://doi.org/10.4236/ce.2018.99095
27. Valencia-Vallejo, N., López-Vargas, O., & Sanabria-Rodríguez, L. (2018). Effect of Motivational Scaffolding on E-Learning Environments: Self-Efficacy, Learning Achievement, and Cognitive Style. Journal of Educators Online, 15(1), n1.
28. Yaniawati, P., Kariadinata, R., Sari, N. M., Pramiarsih, E. E., & Mariani, M. (2020). Integration of e-Learning for Mathematics on Resource-Based Learning: Increasing Mathematical Creative Thinking and Self-Confidence. International Journal of Emerging Technologies in Learning (iJET), 15(06), 60-78.
29. Yimer, S. T., & Feza, N. N. (2019). Learners’ Conceptual Knowledge Development and Attitudinal Change towards Calculus Using Jigsaw Co-operative Learning Strategy Integrated with GeoGebra. International Electronic Journal of Mathematics Education, 15(1), em0554.