Submitted on: 01 July 2017.
Revised on: 29 August 2017.
Accepted on: 07 October 2017.
___________________Journal of Internet Services and Applications
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Submitted on: 26 January 2012.
Revised on: 06 May 2012.
Accepted on: 16 June 2012.
___________________Journal of Internet Services and Applications
Submitted on: 04 May 2020.
Revised on: 29 July 2020.
Accepted on: 10 September 2020.
___________________Journal of Internet Services and Applications
Submitted on: 27 October 2014.
Revised on: 08 February 2015.
Accepted on: 05 March 2015.
___________________Journal of Internet Services and Applications
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