DO , Thi Kieu Diem. KOREAN LANGUAGE AND CULTURE STUDIES STUDENTS’ PERCEPTION OF THE KOREAN VOWEL SYSTEM. JOURNAL OF INQUIRY INTO LANGUAGES AND CULTURES, [S. l.], v. 7, n. 3, p. 321–329, 2023. DOI: 10.63506/jilc.0703.57. Disponível em: https://jilc.vn/index.php/jilc/article/view/57.. Acesso em: 19 oct. 2026.