Rittikarn, N., Ekpetch, C., & Sungkaosuttiruk, S. (2020). Development of a Supply Management Handbook in Schools under Chumphon Primary Educational Service Area Office 2. Rajapark Journal, 14(36), 266–277. retrieved from https://so05.tci-thaijo.org/index.php/RJPJ/article/view/244886