Abbad, Muneer, and Faten Jaber. “Evaluating E-Learning Systems: An Empirical Investigation on Students’ Perception in Higher Education Area”. International Journal of Emerging Technologies in Learning (iJET) 9, no. 4 (June 14, 2014): pp. 27–34. Accessed April 26, 2024. https://online-journals.org/index.php/i-jet/article/view/3480.