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Submitted on: 20 July 2015.
Revised on: 07 September 2015.
Accepted on: 04 October 2015.
___________________Environmental Progress & Sustainable Energy
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Submitted on: 14 June 2018.
Revised on: 06 August 2018.
Accepted on: 30 September 2018.
___________________Environmental Progress & Sustainable Energy
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Submitted on: 27 March 1998.
Revised on: 19 July 1998.
Accepted on: 04 September 1998.
___________________Environmental Progress & Sustainable Energy
Submitted on: 16 November 2019.
Revised on: 27 January 2020.
Accepted on: 02 March 2020.
___________________Environmental Progress & Sustainable Energy