Hinkaew, T. (2023). Motivation Factor Affecting Work Effectiveness of Personnel Attached to Muang Udon Thani Municipality, Udon Thani Province . Rajamangala University of Technology Tawan-ok Social Science Journal, 12(2), 127–144. retrieved from https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/258103