Jittjang, K., K. Jittjang, C. Singnoy, and C. Srichannil. “HOW FLOW STATE OCCURS OF THAI PROFESSIONAL GOLFERS”. Journal of Faculty of Physical Education, vol. 25, no. 2, Dec. 2022, pp. 1-12, https://he03.tci-thaijo.org/index.php/peswuJ/article/view/931.