ขุนวิมล บ. “The Analysis of Mistakes in Thai Essay of the First-Year Students Majoring in English for International Communication Faculty of Humanities and Social Science Rajamangala University of Technology Tawan-Ok”. Journal of Man and Society, vol. 7, no. 1, Dec. 2021, pp. 87-108, https://so06.tci-thaijo.org/index.php/husocjournal/article/view/244027.