SILABAN, P. J.; GINTING, E. F.; SAMOSIR, E. R.; TARIGAN, A. M. B.; SIRINGORINGO, R. Sosialisasi Alat Peraga Perkalian Jarimatika di UPT SD Negeri 065015 Medan Tuntungan. Jurnal Pengabdian Masyarakat Bangsa, [S. l.], v. 1, n. 12, p. 3341–3345, 2024. DOI: 10.59837/jpmba.v1i12.149. Disponível em: https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/149. Acesso em: 2 may. 2026.