Meenakorn, C. “Internal Environment Relating Human Resource Development of Laksam Subdistrict Administrative Organization, Ban Praew District, Samutsakhon Province”. Journal of Humanities and Social Sciences Thonburi University, vol. 17, no. 1, Dec. 2022, pp. 184-97, https://so03.tci-thaijo.org/index.php/trujournal/article/view/263186.