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/gsrh.0101202403. Disponível em: https://gsrh.net/index.php/home/article/view/44. Acesso em: 13 mar. 2025.