Senthil kumaran V, Nithiya Shri M, and Harini A. “A Review on Gamification in E-Learning: Effects and Challenges”. Jurnal Pendidikan 24, no. 1 (March 31, 2023): 29–42. Accessed July 3, 2024. https://jurnal.ut.ac.id/index.php/jp/article/view/3673.