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