Barokati Seliro Wangi, Nisaul, Punaji Setyosari, Dedi Kuswandi, and Wasis D Dwiyogo. “Gamification As a Strategy to Improve Student Learning Motivation : Preparing Student for 21st Century”. International Journal of Engineering & Technology 7, no. 2.14 (April 6, 2018): 323–325. Accessed May 4, 2024. https://sciencepubco.com/index.php/ijet/article/view/14699.