Submitted on: 24 October 2022.
Revised on: 27 January 2023.
Accepted on: 24 March 2023.
___________________Cleaner Environmental Systems---ELSEVIER
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Submitted on: 12 March 2010.
Revised on: 29 June 2010.
Accepted on: 04 August 2010.
___________________Cleaner Environmental Systems---ELSEVIER
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Submitted on: 10 May 2008.
Revised on: 23 June 2008.
Accepted on: 18 July 2008.
___________________Cleaner Environmental Systems---ELSEVIER
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Submitted on: 27 June 1998.
Revised on: 28 August 1998.
Accepted on: 13 September 1998.
___________________Cleaner Environmental Systems---ELSEVIER