AMNA, Shally; RENI, Fetri. Exploring Vowel Mispronunciation Errors among University Students from West Sumatera . JOINT: Journal of Inspirational English Language Teaching, [S. l.], v. 1, n. 1, p. 11–21, 2024. DOI: 10.33830/joint.v1i1.10317. Disponível em: https://jurnal.ut.ac.id/index.php/joint/article/view/10317. Acesso em: 18 mar. 2026.