Submitted on: 23 December 2006.
Revised on: 08 April 2007.
Accepted on: 21 May 2007.
___________________International Journal of Oil Gas and Coal Technology
Submitted on: 29 November 2011.
Revised on: 20 February 2012.
Accepted on: 04 March 2012.
___________________International Journal of Oil Gas and Coal Technology
Submitted on: 24 February 2024.
Revised on: 11 May 2024.
Accepted on: 22 June 2024.
___________________International Journal of Oil Gas and Coal Technology
Submitted on: 04 November 2024.
Revised on: 30 January 2025.
Accepted on: 04 March 2025.
___________________International Journal of Oil Gas and Coal Technology
Submitted on: 22 December 2015.
Revised on: 12 February 2016.
Accepted on: 05 March 2016.
___________________International Journal of Oil Gas and Coal Technology
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