BOONYAKIAT, C.; LIETZ, K.; USAHO, K. English Listening and Speaking Difficulties and Self-Directed Enhancement Strategies among Undergraduate Aviation Business Students at North Bangkok University. Journal of Buddhist Education and Research (JBER), [S. l.], v. 12, n. S1, p. 1221–1232, 2026. Disponível em: https://so06.tci-thaijo.org/index.php/jber/article/view/299147. Acesso em: 29 aug. 2026.