VACACELA, D. L. A.; RAMIREZ, M. R. Self-awareness Strategy Using Podcasting to Improve Tense and Lax Vowel Pronunciation Sounds in Beginner EFL-Adult Learners. Journal of Foreign Language Teaching and Learning, [S. l.], v. 5, n. 1, p. 79–98, 2020. DOI: 10.18196/ftl.5148. Disponível em: https://journal.umy.ac.id/index.php/FTL/article/view/7233. Acesso em: 19 may. 2025.