Wichitchan, Romkamon, Kanyapat Chanmungpak, and Wachira Khemphong. “The Motivation of Personal Performance Effect Efficiency and Effectiveness to Personal Performance Administration Organization, Chang Klang District, Nakhon Si Thammarat Province: Keywords: Motivation, Personnel, Performance”. Chalermkarnchana Academic Journal 9, no. 1 (April 5, 2022): 71. accessed June 28, 2025. https://so19.tci-thaijo.org/index.php/cnujournal/article/view/198.