Mai, T. N., & Tran, H. L. (2017). Difficulties in teaching and reading vocabulary in the textbook English for food production staff" for the second year students of pre-intermediate level at Hanoi Tourism College. University of Languages and International Studies.

Mai, Tuyet Nhung, and Hien Lan Tran. Difficulties in Teaching and Reading Vocabulary in the Textbook English for Food Production Staff" for the Second Year Students of Pre-intermediate Level At Hanoi Tourism College. University of Languages and International Studies, 2017.

Mai, Tuyet Nhung, and Hien Lan Tran. Difficulties in Teaching and Reading Vocabulary in the Textbook English for Food Production Staff" for the Second Year Students of Pre-intermediate Level At Hanoi Tourism College. University of Languages and International Studies, 2017.