Feldman, Kanyavee, and Bampen Maitreesophon. “Guidelines for the Development of Personnel Competency of the Provincial Electricity Authority of Prachuap Khiri Khan Province”. Journal of Humanities and Social Sciences Review 25, no. 2 (December 20, 2023): 186–203. accessed April 14, 2025. https://so05.tci-thaijo.org/index.php/hspbruacthjournal/article/view/269659.