Ayati, A., A. Zeraatkar Moghaddam, B. Tanhaei, F. Deymeh, and M. Sillanpaa. “Response Surface Methodology Approach for Optimization of Methyl Orange Adsorptive Removal by Magnetic Chitosan Nanocomposite”. Macedonian Journal of Chemistry and Chemical Engineering, vol. 36, no. 1, May 2017, pp. 143-51, doi:10.20450/mjcce.2017.991.