Riaz, M. et al. 2012. Kinetic and Equilibrium Modeling of Lead(II) Sorption onto Chemically Pretreated Gossypium hirsutum (Cotton) Leaves Waste Biomass. Asian Journal of Chemistry. 25, 2 (Sep. 2012), 1111–1116. DOI:https://doi.org/10.14233/ajchem.2013.13610.