Abderrahman, Chekry, Oriche Aziz, and Khaldi Mohamed. “Sharing and Adaptation of Educational Documents in E-Learning”. International Journal of Emerging Technologies in Learning (iJET) 7, no. 1 (February 29, 2012): pp. 50–53. Accessed May 1, 2024. https://online-journals.org/index.php/i-jet/article/view/1835.