HONG, N. T. V.; MY, N. H. H.; NHIEN, N. T. N. Course-level learner engagement across face-to-face and synchronous online EFL learning: A mixed-methods study in Vietnam. English Language Teaching Educational Journal, [S. l.], v. 9, n. 2, p. 401–415, 2026. DOI: 10.12928/eltej.v9i2.16641. Disponível em: http://journal2.uad.ac.id/index.php/eltej/article/view/16641. Acesso em: 14 oct. 2026.