Prommayon, Preeda, Suparerk Tharapitakwong, Phathranit Kitthitinan, Sudarat Sangkeaw, and Pichaphob Panphare. “The influence of Motivation on Work Efficiency of Public Organizations Employees in Chiang Mai Province”. Research and Development Journal, Loei Rajabhat University 19, no. 70 (January 2, 2025): 80–91. accessed December 9, 2025. https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/273838.