Submitted on: 19 March 2015.
Revised on: 26 June 2015.
Accepted on: 08 August 2015.
___________________Journal of Hydro-environment Research
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Submitted on: 30 January 2009.
Revised on: 26 March 2009.
Accepted on: 17 May 2009.
___________________Journal of Hydro-environment Research
Submitted on: 29 October 2013.
Revised on: 24 December 2013.
Accepted on: 25 January 2014.
___________________Journal of Hydro-environment Research