N. T. Hien, 《Teaching English for Tourism in order to Cater to the Specific Requirements of English majors at Ho Chi Minh City University of Industry and Trade》, J. Knowl. Learn. Sci. Technol., 卷 3, 期 1, 页 81–92, 3月 2024, doi: 10.60087/jklst.vol3.no1.p92.