เลาศรีรัตนชัย ปิยะพงษ์. “A Study of Types, Styles and Mistakes of Writing Special Problem Titles in English of Bachelor’s Degree Students”. Liberal Arts Review 12, no. 24 (December 29, 2017): 21–33. Accessed May 19, 2024. https://so04.tci-thaijo.org/index.php/larhcu/article/view/143844.