Tampradit, K., and P. Chailert. “A STUDY OF QUALITY OF LIFE OF PHYSICAL EDUCATION TEACHERS IN PHAYAO PROVINCE”. Academic Journal of Thailand National Sports University, vol. 14, no. 2, Apr. 2022, pp. 29-40, https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/251078.