1. Adam, J. and Ali, M. (2021) Students Perspective On Shifting From on-Campus to Digital Education : A qualitative study on the effects of the unexpected change from on-campus to digital education from Malmö university systems development students perspective (Thesis) Mamso Universitet https://www.diva-portal.org/smash/get/diva2:1566020/FULLTEXT02.pdf
2. Antwi, V., Savelsbergh, E.R., & Eijkelhof, H.M.C. (2018). Understanding Kinematics Graphs Using MBL Tools, Simulations and Graph Samples in An Interactive Engagement Context in A Ghanaian University. Journal of Physics: Conference Series 1076 012002. DOI :10.1088/1742-6596/1076/1/012002
3. Baker, B., Trigueros, M., & Hemenway, C. (2001). On transformations of functions. In Proceedings of the Twenty-Third Annual Meeting, North American Chapter of the International Group for PME (Vol. 1, pp. 91-98).
4. Barrot, J. S., Llenares, I. I., & Del Rosario, L. S. (2021). Students' online learning challenges during the pandemic and how they cope with them: The case of the Philippines. Education and information technologies, 26(6), 7321–7338. https://doi.org/10.1007/s10639-021-10589-x
5. Day, T., Chang, I. C. C., Chung, C. K. L., Doolittle, W. E., Housel, J., & McDaniel, P. N. (2021). The immediate impact of COVID-19 on postsecondary teaching and learning. The Professional Geographer, 73(1), 1–13.
6. Eisenberg, T., & Dreyfus, T. (1994). On understanding how students learn to visualize function transformations. Research in collegiate mathematics education, 1, 45-68.
7. Eisenberg, T. (2002). Functions and associated learning difficulties. In Advanced mathematical thinking (pp. 140-152). Springer, Dordrecht.
8. Felkel, P., Magana, A.J., Folta, M. Sears, A.G., & Benes, B. (2018). I3T: Using Interactive Computer Graphics to Teach Geometric Transformations.Conference on Eurographics 2018- Education paper. DOI:10.2312/eged.20181000
9. Lage, A. E., & Gaisman, M. T. (2006). An analysis of students’ ideas about transformations of functions. Advanced Mathematical Thinking, 2, 23-30.