Peempostaychodom, W., J. Wattana, and P. Vayachuta. “Development of Non-Formal Education Program for Preparing Performance Appraiser’s Readiness of Evaluation”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 6, no. 2, Apr. 2023, pp. 719-33, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/262996.