Hong, Nguyen Tran Viet, Nguyen Hong Ha My, and Nguyen Thi Nhu Nhien. 2026. “Course-Level Learner Engagement across Face-to-Face and Synchronous Online EFL Learning: A Mixed-Methods Study in Vietnam”. English Language Teaching Educational Journal 9 (2):401-15. https://doi.org/10.12928/eltej.v9i2.16641.