SILABAN, P. J.; SITUMORANG, R. A.; SIMATUPANG, P.; SIANTURI, N. F.; NAIBAHO, M.; SITANGGANG, Y. Sosialisasi Alat Peraga Jarimatika UPT SD Negeri 066650 Medan Kota. Jurnal Pengabdian Masyarakat Bangsa, [S. l.], v. 1, n. 8, p. 1357–1360, 2023. DOI: 10.59837/jpmba.v1i8.110. Disponível em: https://jurnalpengabdianmasyarakatbangsa.com/index.php/jpmba/article/view/110. Acesso em: 4 aug. 2026.