Putry Regita Sari, A., D. Sulistyaningsih, and I. Joko Suprayitno. “Development of The Media Game Math City Based on Character Education to Improve Critical Thinking Ability”. Proceeding Education, Science, and Technology International Conference , vol. 2, no. 1, Aug. 2024, pp. 16-27, http://103.97.100.158/index.php/edusciencetech/article/view/564.