Arifin, Nurdin, Asmita Yati, and Fauziah Fauziah. “Pembinaan OSN Matematika Dan IPA Bagi Peserta Didik SD Negeri 002 Samarinda Utara”. Jurnal Abdimas Mahakam 4, no. 02 (July 5, 2020): 188–196. Accessed April 19, 2024. https://journal.uwgm.ac.id/abdimasmahakam/article/view/918.