Submitted on: 09 January 1999.
Revised on: 13 April 1999.
Accepted on: 23 May 1999.
___________________Information Technology and Control
Submitted on: 13 April 2002.
Revised on: 07 May 2002.
Accepted on: 30 June 2002.
___________________Information Technology and Control
Submitted on: 11 September 2007.
Revised on: 18 December 2007.
Accepted on: 21 January 2008.
___________________Information Technology and Control
Submitted on: 22 February 2013.
Revised on: 10 May 2013.
Accepted on: 21 May 2013.
___________________Information Technology and Control
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Submitted on: 17 August 2010.
Revised on: 16 October 2010.
Accepted on: 23 November 2010.
___________________Information Technology and Control
Submitted on: 02 October 2012.
Revised on: 22 December 2012.
Accepted on: 13 February 2013.
___________________Information Technology and Control
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