Budiarti, Erna, Juwita Tri Lestari, and Emmanuel Hagenimana. “The Educational Game ‘MARIO’ for Early Childhood Number Recognition to Improve Cognitive Abilities: Attempts and Problems”. Journal of Teaching and Learning Mathematics 2, no. 1 (July 12, 2024): 08–16. Accessed October 6, 2024. https://ejournal.umm.ac.id/index.php/jtlm/article/view/28754.