أحمد د. هالة إبراهيم حسن, and سعيد د. فيصل محمد عبد الوهاب. “Evaluating E-Courses at the Open University of Sudan in the Light of the Criteria for the Quality of E-Courses”. Palestinian Journal for Open Learning & e-Learning 4, no. 8 (May 17, 2017). Accessed July 3, 2024. https://journals.qou.edu/index.php/jropenres/article/view/354.