LE, L. K.; TRINH, H. K. Investigating Vietnamese EFL Teachers’ Learning Outcomes from a Professional Development Course. AsTEN Journal of Teacher Education, [S. l.], v. 10, n. 1, 2026. DOI: 10.56278/asten.v10i1.4090. Disponível em: https://po.pnuresearchportal.org/ejournal/index.php/asten/article/view/4090. Acesso em: 23 oct. 2026.