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Submitted on: 16 March 2012.
Revised on: 04 June 2012.
Accepted on: 26 July 2012.
___________________JOURNAL OF ENGINEERING DESIGN---TAYLOR & FRANCIS LTD
Submitted on: 03 August 2018.
Revised on: 15 November 2018.
Accepted on: 20 December 2018.
___________________JOURNAL OF ENGINEERING DESIGN---TAYLOR & FRANCIS LTD
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