อ่ําคิดส. A Study of Effects of Mandarin Words Used as Verbs and Prepositions on Thai Learners and Instruction. ศิลปศาสตร์ [Internet]. 29Jun.2018 [cited 3May2024];13(2):161-76. Available from: https://rsujournals.rsu.ac.th/index.php/jla/article/view/415