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Submitted on: 06 October 2008.
Revised on: 31 October 2008.
Accepted on: 06 November 2008.
Mathematics Education Research Journal
Submitted on: 31 December 2004.
Revised on: 13 January 2005.
Accepted on: 03 February 2005.
NULL
Submitted on: 25 April 2005.
Revised on: 28 May 2005.
Accepted on: 14 June 2005.
NULL
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Submitted on: 05 April 2000.
Revised on: 16 May 2000.
Accepted on: 01 June 2000.
NULL
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Submitted on: 18 November 2001.
Revised on: 07 December 2001.
Accepted on: 18 December 2001.
Mathematics Education Research Journal