สัตนาโค พ. (2018) “The Development of the Ability of English vocabulary learning of Pratomsuksa 2 students by using Role - Play method and English Vocabulary Writing Exercises”, Academic Journal of Mahamakut Buddhist University Roi Et Campus, 8(1), pp. 148–155. available at: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/194941 (accessed: 13 October 2026).