1. R.M. Santhaniello, in: F.L. Herber (Ed.), Industrial Pollut. Contr. Handbook, McGraw-Hill, New York, 1971.
2. D.B. Singh, Studies on the Removal of Heavy Metal Ions from Water, Ph.D. Thesis, Department of Applied Chemistry, Banaras Hindu University, Varanasi, India, 1992.
3. World Health Organization, Guidelines for Drinking Water Quality, Geneva, Switzerland, Vols. 1 and 2, 1984.
4. Variation in the concentration of Cd in human kidney as a function of age of geographic origin;Perry;J. Chromical Disease,1961
5. Fly-ash for the treatment of Cd(II) rich effluents;Yadav;J. Environ. Tech. Lett.,1987