BUSTOS, J.; VIGNOLO, F.; VYHMEISTER, G. . A study on auditory perception of tense and lax vowels of English as a FL by learners with Spanish as L1. Teaching English as a Foreign Language Journal, [S. l.], v. 2, n. 2, p. 138–145, 2023. DOI: 10.12928/tefl.v2i2.498. Disponível em: https://journal1.uad.ac.id/index.php/tefl/article/view/498. Acesso em: 5 jul. 2024.