1. Metal Pollution in the Aquatic Environment;Forstner,1981
2. Metals Speciation Separation and Recovery;Patterson,1987
3. Cadmium in the Environment;Friberg,1979
4. Waste Water Treatment;Patterson,1977
5. MINAS pollution control acts, rules, notification issued there under Central Pollution Control Board, Ministry of Environment and Forests, Government of India, New Delhi, September 2001.