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Submitted on: 21 May 2001.
Revised on: 12 August 2001.
Accepted on: 01 September 2001.
___________________JOURNAL OF MANAGEMENT IN ENGINEERING
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Submitted on: 06 March 2005.
Revised on: 06 June 2005.
Accepted on: 14 July 2005.
___________________JOURNAL OF MANAGEMENT IN ENGINEERING
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Submitted on: 31 January 1998.
Revised on: 21 April 1998.
Accepted on: 06 May 1998.
___________________JOURNAL OF MANAGEMENT IN ENGINEERING
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Submitted on: 29 June 2008.
Revised on: 14 October 2008.
Accepted on: 13 November 2008.
___________________JOURNAL OF MANAGEMENT IN ENGINEERING