1. Abe G, Jayakumar P, James EJ (1997) Impact of fresh water diversion on mixing and exchange processes in the Muvattupuzha estuary. Institution of Engineers (India) Journal 77: 186–189.
2. Arun LK (1998) Status and distribution of fishes in Periyar lakestream systems of Southern-Western Ghats. Fish Genetics and Biodiversity Conservation: National Bureau of Fish Genetic Resources Publications, Nature Conservators, Muzaffarnagar, India. pp 492–495.
3. Benke A (1990) Perspective on America’s vanishing streams, Journal of the North American Benthological Society 9(1): 77–88.
4. Central Groundwater Board, Ministry of Water Resources, Government of India (2009) Detailed Guidelines for estimation of groundwater estimation methodology. Available online: http://cgwb.gov.in/GW_assessment.html (Assessed on 18 October 2013).
5. Chulsang Yoo (2006) Long term analysis of wet and dry years in Seoul, Korea. Journal of Hydrology 318(1–4): 24–36.