Submitted on: 12 March 2004.
Revised on: 04 April 2004.
Accepted on: 17 April 2004.
Scandinavian Journal of Educational Research
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Submitted on: 12 December 2017.
Revised on: 27 December 2017.
Accepted on: 21 January 2018.
Scandinavian Journal of Educational Research
Submitted on: 29 October 2015.
Revised on: 15 November 2015.
Accepted on: 28 November 2015.
Scandinavian Journal of Educational Research
Submitted on: 25 December 2013.
Revised on: 02 January 2014.
Accepted on: 14 January 2014.
Scandinavian Journal of Educational Research
Submitted on: 29 August 2012.
Revised on: 30 September 2012.
Accepted on: 09 October 2012.
Scandinavian Journal of Educational Research
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http://reply.papertrans.cn/3/276/27513/27513-28.png
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Submitted on: 19 January 2009.
Revised on: 17 February 2009.
Accepted on: 15 March 2009.
Scandinavian Journal of Educational Research