WIDAGSA, R. Closing Diphthongs among Javanese Learners of English. Journal of Foreign Language Teaching and Learning, [S. l.], v. 2, n. 2, p. 1–10, 2017. DOI: 10.18196/ftl.2219. Disponível em: https://journal.umy.ac.id/index.php/FTL/article/view/3190. Acesso em: 30 apr. 2025.