poujeen, Amnat. 2022. “A Study of Teacher Working Motivation in Primary School under the Office of Uthai Thani Educational Service Area 1”. Education Journal Faculty of Education, Nakhon Sawan Rajabhat University 5 (1). Nakhon Sawan,Thailand:67-76. https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/254679.