สุเมขะโส ย. “Developing a Structural Relationship Model of Causal Factors of Strategic Leadership Influencing the Effectiveness of Sports Schools Administrators in Thailand”. Journal of Innovation and Learning Sciences, vol. 12, no. 1, Aug. 2018, pp. 137-4, https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/141193.