Pradana, Fajar, Punaji Setyosari, Saida Ulfa, and Tsukasa Hirashima. 2023. “Development of Gamification-Based E-Learning on Web Design Topic”. International Journal of Interactive Mobile Technologies (iJIM) 17 (03):pp. 21-38. https://doi.org/10.3991/ijim.v17i03.36957.