Nugroho, Heru Santoso Wahito, Handoyo Handoyo, Hadi Prayitno, and Arief Budiono. “Sort Elements Based on Priority, in Order to Improve the Quality of E-Learning in Health Using Difficulty-Usefulness Pyramid With Weighting (DUP-We)”. International Journal of Emerging Technologies in Learning (iJET) 14, no. 18 (September 30, 2019): pp. 186–193. Accessed November 24, 2024. https://online-journals.org/index.php/i-jet/article/view/10809.