Silaked, Thanatchapohn. “A COMPARISON OF THE USE OF ENGLISH SKILLS IN PERFORMING TASKS OF HOTEL EMPLOYEES”. Dusit Thani College Journal 15, no. 3 (December 30, 2021): 245–256. accessed September 14, 2026. https://so01.tci-thaijo.org/index.php/journaldtc/article/view/253873.