Aris Triwahyu Febriansah, Yerry Soepriyanto, Muhibuddin Fadhli. Leaderboard as an Element of Gamification and Student Self-Efficacy for Performance Achievement. JIPPG [Internet]. 2024 Nov. 25 [cited 2025 Mar. 12];7(3):508-19. Available from: https://ejournal.undiksha.ac.id./index.php/JIPPG/article/view/84477