Kongtongsang T. “Factors Related to Health Problems Among Staffs Using Chemical Agent to Control Dengue Mosquitoes in Phattalung Province”. Journal of The Department of Medical Services 42, no. 5 (October 1, 2017): 71–77. Accessed April 26, 2024. https://he02.tci-thaijo.org/index.php/JDMS/article/view/248790.