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  2. Government of India & Government of the Netherlands (2003). Hydrometry, Design Manual, vol. IV. Central Water Commission, New Delhi.
  3. Intergovernmental Panel on Climate Change (2008). "Climate Change and Water” IPCC Technical Paper VI. IPCC Secretariat, Geneva.
  4. World Meteotological Organization (1994). Guide to hydrolotical practicesi Data acquisition and p.ocessing,, analysosa forecasting and other applications WMO-No. 168. World Meteorological Organization, Geneva.