Mailani, Elvi, Mardhiyah Kharismayanda, Alfyanti Alfyanti, Dianrani Anastasya Purba, Ika Novita Padang, and Jenni Romayanti Ginting. “Etnomatematika: Rumah Adat, Alat Musik, Makanan Khas, Dan Pakaian Adat Batak Toba Sebagai Sumber Belajar Matematika”. Journal of Citizen Research and Development 2, no. 1 (September 4, 2025): 251–258. Accessed July 6, 2026. https://rayyanjurnal.com/index.php/jcrd/article/view/4526.