Tampubolon, Flansius, Niken Kirey Pasaribu, and Rebecca Saulina Aritonang. “Tradisi Mangupa-Upa Pada Masyarakat Batak Toba”. Jurnal Pendidikan Tambusai 8, no. 2 (June 25, 2024): 25607–25616. Accessed May 15, 2025. http://jptam.org/index.php/jptam/article/view/16135.