YANI LUBIS; ADE SURIYANI NASUTION; LIYUNDZIRA FIKROH GANI. A Comprehensive Literature Review on English Vowels. Jurnal Pendidikan dan Sastra Inggris, [S. l.], v. 3, n. 2, p. 1–10, 2023. DOI: 10.55606/jupensi.v3i2.1915. Disponível em: https://journalshub.org/index.php/JUPENSI/article/view/1915. Acesso em: 21 apr. 2025.