Polyong, Chan Pattama, and Anamai Thetkathuek. “Factors influencing the hematological parameters among laborers at a gas service station in Rayong Province, Thailand: 10.55131/jphd/2022/200304”. Journal of Public Health and Development 20, no. 3 (September 9, 2022): 43–57. accessed April 4, 2025. https://he01.tci-thaijo.org/index.php/AIHD-MU/article/view/258488.