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Submitted on: 13 January 2013.
Revised on: 19 April 2013.
Accepted on: 03 May 2013.
___________________INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
Submitted on: 09 August 1998.
Revised on: 05 October 1998.
Accepted on: 14 November 1998.
___________________INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
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Submitted on: 19 March 1998.
Revised on: 18 April 1998.
Accepted on: 14 May 1998.
___________________INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
Submitted on: 11 November 2018.
Revised on: 05 December 2018.
Accepted on: 29 December 2018.
___________________INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE