Poopair, Aurachit, and Saisamorn Srisukphrasert. “The Efficiency Evaluation of Competency-Based Instructional Modules on Educational Analysis for Developing the Competence of the Agricultural Teachers at Secondary School Level in the Educational Region Seven”. Kasetsart Journal of Social Sciences 13, no. 2 (July 1, 1992): 165–174. accessed September 11, 2026. https://so04.tci-thaijo.org/index.php/kjss/article/view/244069.