CHRISTOPHER, Leon; WAWORUNTU, Alexander. Java Programming Language Learning Application Based on Octalysis Gamification Framework. IJNMT (International Journal of New Media Technology), [S. l.], v. 8, n. 1, p. 65–69, 2021. DOI: 10.31937/ijnmt.v8i1.2049. Disponível em: https://ejournals.umn.ac.id/index.php/IJNMT/article/view/2049. Acesso em: 11 aug. 2025.