Nguyen, T. A., Le, T. T., Vang, M. D., Phuong, Y. H., Huynh, T. T. A., Nguyen, T. H. and Pham, T. T. (2023) “Vietnamese EFL high school teachers’ perceptions of difficulties when implementing competency-based English teaching curriculum and their proposed solutions”, Forum for Linguistic Studies, 5(2), p. 1863. doi: 10.59400/FLS.v5i2.1863.