Sombatthavee P. The Effect of Training Formalities on Sportsmanship Development: A Case Study of Kasem Bundit University Futsal Club Professional Players. JKBU [Internet]. 2018 Jun. 25 [cited 2024 May 1];19(June):15-22. Available from: https://so04.tci-thaijo.org/index.php/jkbu/article/view/119054