ถาวรพรหม ส. (2018) “Sustainable Model of Development for Volleyball Competition Management of Petvittayakarn School”, Journal of Roi Et Rajabhat University, 12(2), pp. 134–148. Available at: https://so03.tci-thaijo.org/index.php/reru/article/view/165520 (Accessed: 19 April 2024).