Submitted on: 16 September 2009.
Revised on: 01 January 2010.
Accepted on: 19 January 2010.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
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Submitted on: 22 April 2001.
Revised on: 26 June 2001.
Accepted on: 21 July 2001.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
Submitted on: 31 July 2018.
Revised on: 02 November 2018.
Accepted on: 13 November 2018.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
Submitted on: 20 November 2020.
Revised on: 08 March 2021.
Accepted on: 06 May 2021.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
Submitted on: 23 April 2021.
Revised on: 09 June 2021.
Accepted on: 25 July 2021.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
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Submitted on: 30 October 2010.
Revised on: 14 December 2010.
Accepted on: 03 January 2011.
___________________Eurasian Business Review---SPRINGER HEIDELBERG
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