Silaban, Patri Janson, Anggun Rosittauli Br. Gurning, Sartika Siahaan, and Silveria Siregar. “Sosialisasi Alat Peraga Satuan Berat Di UPT SD Negeri 067244 Kota Medan”. Jurnal Pengabdian Masyarakat Bangsa 1, no. 10 (December 2, 2023): 2189–2193. Accessed May 10, 2026. https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/139.