Agustina Siagian, Marissa Cory. “Ulos Ragi Hotang Dalam Perubahan (Potret Evolusi Kebudayaan Batak Toba)”. JURNAL RUPA 1, no. 2 (April 25, 2017). Accessed August 2, 2025. https://journals.telkomuniversity.ac.id/rupa/article/view/743.