Submitted on: 02 January 1999.
Revised on: 12 April 1999.
Accepted on: 14 May 1999.
___________________African Journal of Accounting Auditing and Finance
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Submitted on: 15 February 2005.
Revised on: 20 April 2005.
Accepted on: 19 June 2005.
___________________African Journal of Accounting Auditing and Finance
Submitted on: 19 February 2006.
Revised on: 06 May 2006.
Accepted on: 07 June 2006.
___________________African Journal of Accounting Auditing and Finance
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Submitted on: 06 October 2018.
Revised on: 23 January 2019.
Accepted on: 20 March 2019.
___________________African Journal of Accounting Auditing and Finance