Pakdee, T., K. Srisuwan, and P. S. Sumato. “Guidelines of the Personnel Management According to Sangahawatthu 4 of Private Education Administrators under the Vocational Education Commission Nakhon Si Thammarat Province”. Journal of MCU Humanities Review, vol. 8, no. 2, Dec. 2022, pp. 267-80, https://so03.tci-thaijo.org/index.php/human/article/view/258052.