SILABAN, P. J.; BARUS, F. B.; SIMANJUNTAK, J.; SINUHAJI, E. F.; PANJAITAN, N. S. Sosialisasi Alat Peraga Jarimatika di UPT SD Negeri 065015 Medan Tuntungan. Jurnal Pengabdian Masyarakat Bangsa, [S. l.], v. 1, n. 12, p. 3329–3333, 2024. DOI: 10.59837/jpmba.v1i12.147. Disponível em: https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/147. Acesso em: 21 may. 2026.