Bais, Abdul, and Mardhiah Abbas. “Ritual Upa Upa Tondi Mandailing: Jejak Kultural Dan Kritik Teologis Islam”. Islamika : Jurnal Ilmu-Ilmu Keislaman 25, no. 1 (July 12, 2025): 106–124. Accessed July 25, 2025. https://ejournal.iainkerinci.ac.id/index.php/islamika/article/view/5642.