Submitted on: 07 July 2014.
Revised on: 20 August 2014.
Accepted on: 14 October 2014.
___________________Engineering Management Journal
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Submitted on: 26 September 2000.
Revised on: 21 October 2000.
Accepted on: 02 November 2000.
___________________Engineering Management Journal
Submitted on: 15 April 2013.
Revised on: 28 July 2013.
Accepted on: 07 September 2013.
___________________Engineering Management Journal
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Submitted on: 07 June 2021.
Revised on: 13 September 2021.
Accepted on: 17 October 2021.
___________________Engineering Management Journal
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