Mursidik, Elly’s Mersina, and Veni Ambarwati. “MATHEMATIC FINGER GAME BERPENDEKATAN OPEN-ENDED DALAM OPERASI HITUNG PERKALIAN PADA SISWA SEKOLAH DASAR”. Pi: Mathematics Education Journal 4, no. 2 (October 30, 2021): 55–62. Accessed May 20, 2024. https://ejournal.unikama.ac.id/index.php/pmej/article/view/5151.