Suhery, Dedy, Rahmatsyah Rangkuti, and Zahratul Idami. “Language Attitude of Singkil Students in the Context of Bilingualism: A Study of Sociolinguistics”. Journal of Applied Studies in Language 6, no. 1 (June 28, 2022): 108–117. Accessed November 5, 2024. https://ojs2.pnb.ac.id/index.php/JASL/article/view/348.