1. Al-Abadi AM, Al-Shamma’a AM, Aljabbari MH (2014) A GIS-based DRASTIC model for assessing intrinsic groundwater vulnerability in northeastern Missan governorate, southern Iraq. Appl Water Sci 7(1):89–101
2. Aller L, Bennet T, Lehr JH, Petty RJ, Hackett G (1987) DRASTIC: a standardized system for evaluating ground water pollution potential using hydrogeologic settings. US EPA Report 600/2–87/035, U.S. Environmental Protection Agency.
http://www.epa.gov/nscep
3. Babiker IS, Mohammed MA, Hiyama T, Kato K (2005) A GIS-based DRATIC model for assessing aquifer vulnerability in Kakamigahara Heights, Gifu Prefecture, central Japan. Sci Total Environ 345(1):127–140
4. CGWB—Central Groundwater Board of India, Major Aquifers of India.
http://www.cgwb.gov.in/Maps.html
5. Chaturvedi RS (1973) A note on the investigation of ground water resources in western districts of Uttar Pradesh. Annual Report, UP Irrigation Research Institute, pp 86–122