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Submitted on: 13 May 2018.
Revised on: 11 June 2018.
Accepted on: 06 July 2018.
Polish Journal of Management Studies
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Submitted on: 18 January 2006.
Revised on: 04 February 2006.
Accepted on: 02 March 2006.
Polish Journal of Management Studies
Submitted on: 17 October 2008.
Revised on: 27 November 2008.
Accepted on: 08 December 2008.
Polish Journal of Management Studies
Submitted on: 04 April 2012.
Revised on: 01 May 2012.
Accepted on: 06 May 2012.
Polish Journal of Management Studies