Namwong, Siriluck. “The Development of Certificate Program in Business Administration Co-operatives for Savings Cooperatives and Credit Union Cooperative by Using Backward Design”. STOU Journal of Agriculture (Online) 3, no. 1 (June 1, 2020): 71–83. accessed February 18, 2025. https://so01.tci-thaijo.org/index.php/stouagjournal/article/view/249527.