Thammakun T, Singhkhanan A. Work-related Stress during the Crisis of COVID-19 Pandemic among Personnel of Sub-district Health Promoting Hospitals in Border Area of Chiang Rai Province. J. Off. Dis. Prev. Control 9 [internet]. 2022 Sep. 21 [cited 2026 Sep. 27];28(3):16-24. available from: https://he02.tci-thaijo.org/index.php/ODPC9/article/view/257176