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Submitted on: 01 January 2012.
Revised on: 26 April 2012.
Accepted on: 13 June 2012.
___________________Istanbul Business Research---ISTANBUL UNIV, SCH BUSINESS
Submitted on: 28 March 1999.
Revised on: 16 July 1999.
Accepted on: 22 August 1999.
___________________Istanbul Business Research---ISTANBUL UNIV, SCH BUSINESS
Submitted on: 07 February 2010.
Revised on: 01 April 2010.
Accepted on: 30 May 2010.
___________________Istanbul Business Research---ISTANBUL UNIV, SCH BUSINESS
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Submitted on: 07 February 1998.
Revised on: 19 May 1998.
Accepted on: 27 June 1998.
___________________Istanbul Business Research---ISTANBUL UNIV, SCH BUSINESS
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