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Submitted on: 30 July 2022.
Revised on: 23 September 2022.
Accepted on: 24 October 2022.
___________________International Electronic Journal of Mathematics Education
Submitted on: 05 February 1999.
Revised on: 28 April 1999.
Accepted on: 13 June 1999.
___________________International Electronic Journal of Mathematics Education
Submitted on: 22 May 2006.
Revised on: 25 July 2006.
Accepted on: 14 September 2006.
___________________International Electronic Journal of Mathematics Education
Submitted on: 16 July 2015.
Revised on: 12 September 2015.
Accepted on: 14 October 2015.
___________________International Electronic Journal of Mathematics Education
Submitted on: 25 February 2002.
Revised on: 23 June 2002.
Accepted on: 08 August 2002.
___________________International Electronic Journal of Mathematics Education
Submitted on: 06 July 2001.
Revised on: 23 October 2001.
Accepted on: 23 November 2001.
___________________International Electronic Journal of Mathematics Education
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