mailani, Elvi. “PENGEMBANGAN BUKU MEDIA PEMBELAJARAN MATEMATIKA SEKOLAH DASAR”. JGK (Jurnal Guru Kita) 3, no. 1 (August 6, 2019): 33–43. Accessed January 5, 2025. http://103.242.233.34/index.php/jgkp/article/view/13844.