Phupanna , Sunsaneephon, and Jukdao Potisaen. “A Study of Circumstances and Problems on Chinese Language Teaching and Learning in Teaching Chinese Students at Rajabhat Mahasarakham University”. Journal of Roi Et Rajabhat University 15, no. 1 (April 28, 2021): 110-121. Accessed June 14, 2021. https://so03.tci-thaijo.org/index.php/reru/article/view/241446.