Submitted on: 08 September 2005.
Revised on: 08 October 2005.
Accepted on: 17 October 2005.
Quality Technology and Quantitative Management
Submitted on: 31 May 2007.
Revised on: 10 June 2007.
Accepted on: 19 June 2007.
Quality Technology and Quantitative Management
Submitted on: 27 May 2015.
Revised on: 30 June 2015.
Accepted on: 07 July 2015.
Quality Technology and Quantitative Management
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