Hoàng Hoa, C. T. and Viên, T. (2018) “Integrating Cultures into Teaching EFL in Vietnam: Teachers’ Perceptions”, LEARN Journal: Language Education and Acquisition Research Network, 11(2), pp. 103–115. available at: https://so04.tci-thaijo.org/index.php/LEARN/article/view/161551 (accessed: 11 September 2026).