Submitted on: 24 March 2011.
Revised on: 29 April 2011.
Accepted on: 27 June 2011.
___________________Journal of Engineering Design and Technology
Submitted on: 08 October 2008.
Revised on: 29 December 2008.
Accepted on: 19 January 2009.
___________________Journal of Engineering Design and Technology
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Submitted on: 20 November 2007.
Revised on: 03 January 2008.
Accepted on: 27 February 2008.
___________________Journal of Engineering Design and Technology
Submitted on: 06 May 2005.
Revised on: 20 July 2005.
Accepted on: 05 September 2005.
___________________Journal of Engineering Design and Technology
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Submitted on: 01 August 2008.
Revised on: 17 November 2008.
Accepted on: 11 December 2008.
___________________Journal of Engineering Design and Technology
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