SILABAN, P. J.; GURNING, A. R. B.; SIAHAAN, S.; SIREGAR, S. Sosialisasi Alat Peraga Satuan Berat di UPT SD Negeri 067244 Kota Medan. Jurnal Pengabdian Masyarakat Bangsa, [S. l.], v. 1, n. 10, p. 2189–2193, 2023. DOI: 10.59837/jpmba.v1i10.139. Disponível em: https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/139. Acesso em: 8 may. 2026.