Panpho, P., Kaewmud, K., Vittayakorn, N. and Sumang, R. 2023. ADSORPTION OF HEAVY METALS USING BIO-CALCIUM CARBONATE DERIVED FROM A GOLDEN APPLE SNAIL (GAS) SHELL. Suranaree Journal of Science and Technology. 30, 5 (Nov. 2023), 030140(1–8). DOI:https://doi.org/10.55766/sujst-2023-05-e02716.