Rahmat, Azwar, Abdul Wahab Syakhrani, and Erwinsyah Satria. “Promising Online Learning and Teaching in Digital Age: Systematic Review Analysis”. International research journal of engineering, IT & scientific research 7, no. 4 (April 29, 2021): 126–135. Accessed July 16, 2024. https://sloap.org/journals/index.php/irjeis/article/view/1578.