Submitted on: 06 November 2010.
Revised on: 14 December 2010.
Accepted on: 01 January 2011.
South African Journal of Economic and Management Sciences
Submitted on: 14 November 2006.
Revised on: 25 November 2006.
Accepted on: 20 December 2006.
South African Journal of Economic and Management Sciences
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Submitted on: 27 December 2004.
Revised on: 11 January 2005.
Accepted on: 02 February 2005.
South African Journal of Economic and Management Sciences
Submitted on: 19 March 2010.
Revised on: 03 April 2010.
Accepted on: 12 April 2010.
South African Journal of Economic and Management Sciences
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Submitted on: 15 March 2011.
Revised on: 31 March 2011.
Accepted on: 21 April 2011.
South African Journal of Economic and Management Sciences