Arifin, V., Handayani, V., Wardhani, L., Suseno, H., & Masruroh, S. (2022). User Interface and Exprience Gamification-Based E-Learning with Design Science Research Methodology. MATRIK : Jurnal Manajemen, Teknik Informatika Dan Rekayasa Komputer, 22(1), 165-176. https://doi.org/https://doi.org/10.30812/matrik.v22i1.2427