Thetkhatheuk, A., T. Yingratanasuk, and K. Promtes. “Ozone Exposure and workers’ Respiratory Symptoms: Case Study a Casting Industry, Eastern Region, Thailand”. Thai Journal of Toxicology, vol. 35, no. 2, Aug. 2020, pp. 1-13, https://li01.tci-thaijo.org/index.php/ThaiJToxicol/article/view/244267.