English Diphthong Characteristics Produced by Thai EFL Learners: Individual Practice Using PRAAT. Computer-Assisted Language Learning Electronic Journal, [S. l.], v. 23, n. 1, p. 401–424, 2024. Disponível em: https://callej.org/index.php/journal/article/view/386.. Acesso em: 30 jun. 2025.