Putra HK, Ekosusilo M, Subiyantoro S, Ismail I, Fauziyah S. Analysis of Teacher Perceptions of Online Gamification Learning Methods. Cognitive [Internet]. 2024Jun.29 [cited 2025Apr.4];2(1):13-8. Available from: http://ojs.edutechpublishing.com/index.php/cognitive/article/view/20