Tabtong, Chayapat, and Sinsupha Juijuljerm. “Adsorption of Lead Ions from Synthetic Wastewater Using Oyster Shell”. Applied Environmental Research 31, no. 1 (June 27, 2013): 45–53. accessed August 27, 2026. https://ph01.tci-thaijo.org/index.php/aer/article/view/9680.