1. Velea, I., Voicu, A., & Lazar, I. (1995). Biosorption of some metallic ions from industrial effluents using fungal strains and bacterial exopolysaccharides. Biohydrometallurgical Processing. Chile: University of Chile.
2. Jayawant MD (1983) Removal of heavy metal ions. Google Patents.
3. Fenglian, W. Q. (2011). Removal of heavy metal ions from wastewaters: a review. Journal of Environmental Management, 92(3), 407–418.
4. Mudhoo, A., Garg, V. K., & Wang, S. (2012). Removal of heavy metals by biosorption. Environmental Chemistry Letters, 10(2), 109–117.
5. Chopra, A., & Pathak, C. (2010). Biosorption technology for removal of metallic pollutants—an overview. Journal of Applied and Natural Science, 2(2), 318–329.