1. Agency for Toxic Substance and Disease Registry, Toxicological profile for lead (draft for public comment), U.S. Department of Health and Human Services, Public Health Service, Atlanta, GA, 2005.
2. US Environmental Protection Agency, Review of the national ambient air quality standards for lead: exposure analysis methodology and validation, Office of Air Quality Planning and Standards. Research Triangle Park, NC, 1999.
3. Biosorption of Heavy Metals;Volesky,1990
4. Adsorption studies of Citrus reticulata (fruit peel of orange): removal of Ni (II) from electroplating wastewater;Ajmal;J. Hazard. Mater.,2000
5. Adsorption of heavy metals from water using banana and orange peels;Annadurai;Water Sci. Technol.,2003