Muhajir, Ahmad. “Harmony With Nature: A Cultural Ecological Study of Mandailing Ethnic Philosophy on the Environment”. Andalas International Journal of Socio-Humanities 5, no. 2 (December 29, 2023): 75–82. Accessed May 17, 2024. http://aijosh.lppm.unand.ac.id/index.php/aijosh/article/view/54.