VAN LOI, N.; HANG, C. T. T. English Proficiency Gain and Mediating Factors in Training: A Self-Evaluation of Vietnamese Pre-Service EFL Teachers. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 20, n. 1, p. 22–47, 2021. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/166. Acesso em: 2 may. 2026.