Poopair A, Srisukphrasert S. The Construction and Efficiency Evaluation of Competency – Based Instructional Modules on Educational Analysis of Developing the Competence of the Agricultural Teachers at Secondary School Level. kasetsart J. Soc. Sci. [internet]. 1989 Jan. 1 [cited 2026 Sep. 11];10(1):61-70. available from: https://so04.tci-thaijo.org/index.php/kjss/article/view/243879