Phan Ha , Uyen, 和 Anh Nguyen. 2024. 《Difficulties of EFL teachers in teaching speaking skills: A case study at Trinh Hoai Duc Primary School》. 知识学习与科学技术期刊 ISSN：2959-6386（在线） 3 (2): 143-61. https://doi.org/10.60087/jklst.vol3.n2.p161.