Elsigini, Waleed Tageldin, and Hanaa Abdulraheem Yamani. “Databases and Their Employment in the Flipped Classroom Learning Environment at Saudi Universities”. Journal of Education and e-Learning Research 8, no. 1 (December 29, 2020): 1–7. Accessed April 26, 2024. http://asianonlinejournals.com/index.php/JEELR/article/view/2486.