Numpa, Suwit. “Health Risk Assessment of Sulfuric Acid Exposure; A Case Study of Cup Lump Production of Rubber Farmers in Mueang District Rayong Province”. Research on Modern science and Utilizing Technological Innovation Journal (RMUTI Journal) 14, no. 3 (October 4, 2021): 91–105. Accessed May 17, 2024. https://ph01.tci-thaijo.org/index.php/rmutijo/article/view/244804.