Batubara, Muhammad Hasyimsyah. “The Position Of Bahasa Mandailing Within The Linguistic Affiliation Of Nusantara Languages: A Systematic Literature Review”. SEUNEUBOK LADA: Jurnal ilmu-ilmu Sejarah, Sosial, Budaya dan Pendidikan 12, no. 2 (October 14, 2025): 552-565. Accessed November 3, 2026. https://ejurnalunsam.id/index.php/jsnbl/article/view/12933.