Submitted on: 21 January 2016.
Revised on: 10 May 2016.
Accepted on: 02 June 2016.
___________________Electronic Commerce Research and Applications
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Submitted on: 05 February 2015.
Revised on: 27 May 2015.
Accepted on: 22 July 2015.
___________________Electronic Commerce Research and Applications
Submitted on: 07 October 2013.
Revised on: 19 January 2014.
Accepted on: 17 March 2014.
___________________Electronic Commerce Research and Applications
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Submitted on: 10 March 2021.
Revised on: 07 June 2021.
Accepted on: 26 July 2021.
___________________Electronic Commerce Research and Applications