Nambunmee, Kowit, Tanika Songlar, Sitang Kongkratoke, Mitra Cassely, and Witoon Niruksanti. 2015. “Biological Markers Application in Silicosis Risk Screening”. Thai Journal of Toxicology 30 (1):92-104. https://li01.tci-thaijo.org/index.php/ThaiJToxicol/article/view/244174.