Pahlevi, Muhammad Reza, and Ika Ratna Indra Astutik. “Web-Based Gamification Loaded E-Learning Information System For Junior High Schools”. Procedia of Engineering and Life Science 1, no. 2 (July 29, 2021). Accessed June 22, 2024. https://pels.umsida.ac.id/index.php/PELS/article/view/1038.