Abdul Majid Channa, Saima Q. Memon, and Muhammad Yar Khuhawar , trans. 2016. “Modeling of Cadmium Removal on Lignite (Thar Coal) from Aqueous System”. Pakistan Journal of Analytical & Environmental Chemistry 17 (1): 65 – 71. https://doi.org/10.21743/pjaec/2016.06.010.