Pratiwi, Pratiwi, Robinson Situmorang, and Sukardjo Sukardjo. 2024. “Gamification for Studying Mathematics by E-Learning”. Proceeding of the International Conference on Multidisciplinary Research for Sustainable Innovation 1 (1):195-200. https://proceeding.researchsynergypress.com/index.php/icmrsi/article/view/786.