Submitted on: 25 September 2011.
Revised on: 24 October 2011.
Accepted on: 20 November 2011.
SAIEE Africa Research Journal---SOUTH AFRICAN INST ELECTRICAL ENGINEERS
Submitted on: 16 April 2019.
Revised on: 01 May 2019.
Accepted on: 14 May 2019.
NULL
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Submitted on: 09 January 2004.
Revised on: 27 January 2004.
Accepted on: 17 February 2004.
SAIEE Africa Research Journal---SOUTH AFRICAN INST ELECTRICAL ENGINEERS
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Submitted on: 05 September 2003.
Revised on: 09 October 2003.
Accepted on: 31 October 2003.
SAIEE Africa Research Journal---SOUTH AFRICAN INST ELECTRICAL ENGINEERS
Submitted on: 05 July 2005.
Revised on: 31 July 2005.
Accepted on: 24 August 2005.
NULL