1. Abouchedid, K., & Eid, G. M. (2004). E-learning challenges in the Arab World: revelations from a case study profile. Quality Assurance in Educational, 12(1), 15–27. https://doi.org/10.1108/09684880410517405
2. Alrasheedi, M., & Capretz, L. (2015). Determination of Critical Success Factors Affecting Mobile Learning: A Meta-Analysis Approach. Turkish Online Journal of Educational Technology, 14(2), 41–51. Retrieved January 15, 2021, from https://arxiv.org/ftp/arxiv/papers/1801/1801.04288.pdf
3. Bari, M., Djouab, R., & Hoa, C. P. (2018). Elearning current situation and emerging challenges. PEOPLE: International Journal of Social Sciences, 4(2), https://doi.org/10.20319/pijss.2018.42.97109
4. Bird, J., & Morgan, C. (2003). Adults contemplating university study at a distance: Issues, themes and concerns. The International Review of Research in Open and Distributed Learning, 4(1). https://doi.org/10.19173/irrodl.v4i1.130
5. Burnette, D. M. (2015). Negotiating the mine field: Strategies for effective online education administrative leadership in higher education institutions. Quarterly Review of Distance Education, 16(3), 13–25.