TAMPUBOLON, K.; SIANTURI, C. F. Pelatihan Operasi Hitung Aritmatika Sosial di Panti Asuhan Talenta Delpita Medan. ULEAD : Jurnal E-Pengabdian, [S. l.], v. 1, n. 1, p. 38–47, 2021. DOI: 10.54367/ulead.v1i1.1392. Disponível em: https://ejournal.ust.ac.id/index.php/ULEAD/article/view/1392. Acesso em: 21 nov. 2024.