ABBO, Garou; APUGE, Michael Etuge. An Acoustic Analysis of Six English Monophthongs Produced by Undergraduate Cameroonian ESL Learners. Journal of World Englishes and Educational Practices , [S. l.], v. 5, n. 2, p. 67–78, 2023. DOI: 10.32996/jweep.2023.5.2.7. Disponível em: https://al-kindipublishers.org/index.php/jweep/article/view/5830. Acesso em: 21 oct. 2025.