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Submitted on: 04 May 2000.
Revised on: 27 May 2000.
Accepted on: 20 June 2000.
Mehran University Research Journal of Engineering and Technology
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Submitted on: 01 September 2007.
Revised on: 05 October 2007.
Accepted on: 15 October 2007.
Mehran University Research Journal of Engineering and Technology
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Submitted on: 07 February 2001.
Revised on: 10 March 2001.
Accepted on: 29 March 2001.
NULL
Submitted on: 09 August 2012.
Revised on: 26 August 2012.
Accepted on: 14 September 2012.
Mehran University Research Journal of Engineering and Technology
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