MIRZAYEV, Elchin. A Comprehensive Guide to English’s Most Common Vowel Sound. Global Spectrum of Research and Humanities, [S. l.], v. 1, n. 1, p. 19–26, 2024. DOI: 10.69760/dgz7cf07. Disponível em: https://gsrh.net/index.php/home/article/view/10. Acesso em: 27 dec. 2024.