Submitted on: 24 December 2000.
Revised on: 11 February 2001.
Accepted on: 05 March 2001.
___________________Electronic Commerce Research and Applications
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Submitted on: 21 December 2021.
Revised on: 14 January 2022.
Accepted on: 09 March 2022.
___________________Electronic Commerce Research and Applications
Submitted on: 15 July 2017.
Revised on: 13 September 2017.
Accepted on: 05 October 2017.
___________________Electronic Commerce Research and Applications
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Submitted on: 20 June 2014.
Revised on: 12 July 2014.
Accepted on: 30 July 2014.
___________________Electronic Commerce Research and Applications
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Submitted on: 08 November 2007.
Revised on: 21 January 2008.
Accepted on: 14 February 2008.
___________________Electronic Commerce Research and Applications
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