Rahmi, Husni Mardhyatur, Nadra Nadra, and Reniwati Reniwati. “Perubahan Fonologis Protobahasa Minangkabau Dalam Isolek Koto Tinggi”. Diglosia: Jurnal Kajian Bahasa, Sastra, dan Pengajarannya 6, no. 2 (April 26, 2023): 513-526. Accessed August 21, 2025. https://www.diglosiaunmul.com/index.php/diglosia/article/view/660.