Kongkaew, Pichainarong. 2019. “THE DEVELOPMENT MODEL OF PHYSICAL EDUCATION SUBJECTS LEARNING MANAGEMENT OF CHIANG MAI UNIVERSITY IN THE 21ST CENTURY”. Academic Journal of Thailand National Sports University 11 (3). Chonburi, Thailand:230-42. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244586.