Supriadi, Supriadi, Arini Zulfaidah, Lie, Epifani Rachmad Gunadi, and Mohammad Nasir. “Gamification-Based Civic Education: Its Impact on High School Students’ Civic Knowledge and Skills”. International Journal of Sustainable English Language, Education, and Science 2, no. 1 (June 24, 2025): 8–14. Accessed September 16, 2025. https://ejournal.cwcu.ac.id/index.php/IJSELES/article/view/65.