Silaban, Patri Janson, Hestin Indriani Bate’e, and Monika Febriati Simarmata. “Sosialisasi Alat Peraga Satuan Panjang Di UPT SD Swasta Tunas Harapan Medan Tuntungan”. Jurnal Pengabdian Masyarakat Bangsa 2, no. 1 (March 1, 2024): 20–23. Accessed May 3, 2026. https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/165.