AndariShelly, HariyatiNunuk, and Mudjito Mudjito. “Way of Improving Learning Effectiveness on Educational Supervision Course in Covid-19 Pandemic: Development of E-Learning-Based Teaching Materials”. International Conference on Elementary Education 3, no. 1 (April 12, 2021): 633-638. Accessed April 27, 2024. http://proceedings.upi.edu/index.php/icee/article/view/1525.