1. D. Hinrichsen, H. Tacio, The coming freshwater crisis is already here. The linkages between population and water. Washington, DC: Woodrow Wilson International Center for Scholars; 2002. Retrieved from http://www.wilsoncenter.org/topics/pubs/popwawa2.pdf
2. Impact of sewage water on seed germination and vigour index of Cicer arietinum L. and Pisum sativum L;Sinha;Int. J. Food Agric. Vet. Sci.,2013
3. “Environmental Pollution”,1st Ed;Dix,1979
4. Water, Pollution: Causes, Effects and Control;Goel;New Age Int.,2006
5. Water Pollution;Agarwal,2005