Johan, Monika, Samuel Sanjaya, Andreas Brata, and Andrew Brillyant. “Gamification to Study Machine Learning Using Octalysis Framework”. Ultimatics : Jurnal Teknik Informatika 15, no. 1 (June 30, 2023): 35-43. Accessed November 22, 2024. https://ejournals.umn.ac.id/index.php/TI/article/view/3118.