Ahmad, Muhammad Fazrulhelmi, et al. “Gamification and Animation in E-Learning: A Case Study on Engagement and Perceived Effectiveness Among Animation Students”. JBS Nexus, vol. 2, no. 1, June 2025, pp. 47-53, https://penerbit.uthm.edu.my/ojs/index.php/jbsnexus/article/view/21194.