Nugroho F, Maulidiah S, Satriadi I, Rini Susanti A, Ria Erika D, Kusnandar M, dkk. The Use of Gamification in E-Learning to Enhance TOEIC Learning Motivation. JASISFO [Internet]. 29 September 2025 [dikutip 12 November 2026];6(2). Tersedia pada: https://jurnal.polsri.ac.id/index.php/jasisfo/article/view/11095