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Submitted on: 28 August 2003.
Revised on: 05 December 2003.
Accepted on: 02 January 2004.
___________________JOURNAL OF REGIONAL SCIENCE---WILEY
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Submitted on: 17 August 1998.
Revised on: 29 September 1998.
Accepted on: 20 October 1998.
___________________JOURNAL OF REGIONAL SCIENCE---WILEY
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Submitted on: 25 February 2018.
Revised on: 15 May 2018.
Accepted on: 30 May 2018.
___________________JOURNAL OF REGIONAL SCIENCE---WILEY
Submitted on: 18 September 2014.
Revised on: 06 December 2014.
Accepted on: 24 December 2014.
___________________JOURNAL OF REGIONAL SCIENCE---WILEY
Submitted on: 21 February 2003.
Revised on: 11 June 2003.
Accepted on: 25 July 2003.
___________________JOURNAL OF REGIONAL SCIENCE---WILEY