PROF DR ABDUL RAHMAN ABDUL AZIZ, K. S. A Village Governmental Leadership Model Based On Philosophical Value System of Dalihan Na Tolu Adat Within Ethnic Of Batak Angkola Society. International Journal of Social Sciences and Humanities Invention, [S. l.], v. 3, n. 8, 2016. Disponível em: https://valleyinternational.net/index.php/theijsshi/article/view/478. Acesso em: 4 may. 2024.