Fitri Angreni Lubis, Dwi Widayati, Gustianingsih. Lexical Variations of Angkola In The City of Padang Sidimpuan. IJERSC [Internet]. 2021Dec.19 [cited 2025Nov.18];2(6):1561-70. Available from: https://www.ijersc.org/index.php/go/article/view/193