Tungsujarittam, Natanan, and Jiraporn Intrasai. “Quality Evaluation of The English Proficiency Test for Automotive Specification Certificate Students at Nakhonsawan Technical College”. LEARN Journal: Language Education and Acquisition Research Network 7, no. 2 (December 1, 2014): 19–35. accessed October 8, 2026. https://so04.tci-thaijo.org/index.php/LEARN/article/view/102697.