Casarett and Daull’s Toxicology: The basic science of poisons. By : Curtis D. Klaassen 6th Edn., McGraw-Hill (Medical Publishing Div. NewYork
• Environmental Biotechnology – by. Indu Shekhar Thakur, I.K. International Pub.(2006)
• Toxicology, Principles and Applications: Raymond I.M.. CRC Publication.
• Microbial Ecology: Fundamentals and Applications by Atlas Bartha (An imprint of Addison Wesley Longman Inc)
• Environmental Microbiology: Maier R.M., Academic Press. 2000 Press, Cambridge. 1993.
• Environmental Science- A global concern; Cunningham W.P. and Saigo B.W Win. C. Brown Publishers, London, 1995.
• Advances in Industrial Waste Water Treatment; P.K. Goel; Technoscience Publications. Jaipur, 1999.