Sirichot , Chayotit, Ann Mahakeeta, and Wattana Suthiphan. 2019. “THE STATE AND PROBLEMS WITH STUDYING MANAGEMENT OF TEACHING HEALTH AND PHYSICAL EDUCATION IN THE DEMONSTRATION SCHOOL IN GOVERNMENT ACCORDING TO OPINION OF UPPER HIGH SCHOOL STUDENTS AND TEACHERS. MASTER THESIS”. Academic Journal of Thailand National Sports University 11 (1). Chonburi, Thailand:259-73. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/246410.