Jamshaid Iqbal, M., et al. “Kinetic Study of Cr(III) and Cr(VI) Biosorption Using Rosa Damascena Phytomass: A Rose Waste Biomass”. Asian Journal of Chemistry, vol. 25, no. 4, Nov. 2012, pp. 2099-03, doi:10.14233/ajchem.2013.13345.