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Submitted on: 02 March 2007.
Revised on: 17 April 2007.
Accepted on: 08 June 2007.
___________________International Journal of Energy and Environmental Engineering
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Submitted on: 07 November 2005.
Revised on: 08 December 2005.
Accepted on: 15 January 2006.
___________________International Journal of Energy and Environmental Engineering
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Submitted on: 07 March 2001.
Revised on: 25 June 2001.
Accepted on: 20 August 2001.
___________________International Journal of Energy and Environmental Engineering
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Submitted on: 08 June 2016.
Revised on: 02 October 2016.
Accepted on: 18 October 2016.
___________________International Journal of Energy and Environmental Engineering
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Submitted on: 12 August 2021.
Revised on: 29 September 2021.
Accepted on: 13 October 2021.
___________________International Journal of Energy and Environmental Engineering