Submitted on: 04 December 1999.
Revised on: 09 February 2000.
Accepted on: 03 April 2000.
___________________JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
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Submitted on: 02 July 1998.
Revised on: 20 October 1998.
Accepted on: 10 December 1998.
___________________JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
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Submitted on: 23 March 2000.
Revised on: 26 April 2000.
Accepted on: 24 May 2000.
___________________JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
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Submitted on: 12 April 2009.
Revised on: 05 July 2009.
Accepted on: 20 August 2009.
___________________JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT