Submitted on: 23 September 2016.
Revised on: 31 October 2016.
Accepted on: 27 December 2016.
___________________International Journal of Technology
Submitted on: 25 May 1998.
Revised on: 27 July 1998.
Accepted on: 18 September 1998.
___________________International Journal of Technology
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Submitted on: 01 October 2003.
Revised on: 21 January 2004.
Accepted on: 02 March 2004.
___________________International Journal of Technology
Submitted on: 19 January 2009.
Revised on: 05 March 2009.
Accepted on: 22 March 2009.
___________________International Journal of Technology
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Submitted on: 23 February 2002.
Revised on: 09 June 2002.
Accepted on: 19 July 2002.
___________________International Journal of Technology