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Submitted on: 04 July 2003.
Revised on: 25 September 2003.
Accepted on: 22 November 2003.
___________________International Journal of Economic Sciences
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Submitted on: 21 May 2019.
Revised on: 16 August 2019.
Accepted on: 31 August 2019.
___________________International Journal of Economic Sciences
Submitted on: 16 July 2016.
Revised on: 08 November 2016.
Accepted on: 29 December 2016.
___________________International Journal of Economic Sciences
Submitted on: 14 June 2011.
Revised on: 06 August 2011.
Accepted on: 03 October 2011.
___________________International Journal of Economic Sciences
Submitted on: 02 May 2006.
Revised on: 07 August 2006.
Accepted on: 13 September 2006.
___________________International Journal of Economic Sciences
Submitted on: 24 March 2020.
Revised on: 10 July 2020.
Accepted on: 26 July 2020.
___________________International Journal of Economic Sciences
Submitted on: 17 June 2011.
Revised on: 18 August 2011.
Accepted on: 17 October 2011.
___________________International Journal of Economic Sciences
Submitted on: 15 April 2005.
Revised on: 19 July 2005.
Accepted on: 30 August 2005.
___________________International Journal of Economic Sciences