Aungsuchawalkit, Thithatakan, Poommin Namvongs, and Sarojn Boonsermwan. 2021. “Human Resource Management Processes Affecting the Performance of Sub-District Administrative Organization Employees, Pak Khat District, Bueng Kan Province”. Rajapark Journal 15 (43). Bangkok, Thailand:339-51. https://so05.tci-thaijo.org/index.php/RJPJ/article/view/255446.