Submitted on: 19 August 2006.
Revised on: 29 September 2006.
Accepted on: 01 November 2006.
___________________International Journal of Special Education
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Submitted on: 04 August 2000.
Revised on: 09 October 2000.
Accepted on: 02 November 2000.
___________________International Journal of Special Education
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Submitted on: 28 January 2011.
Revised on: 12 March 2011.
Accepted on: 12 April 2011.
___________________International Journal of Special Education
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Submitted on: 27 July 2018.
Revised on: 27 September 2018.
Accepted on: 25 October 2018.
___________________International Journal of Special Education
Submitted on: 15 November 2007.
Revised on: 18 January 2008.
Accepted on: 26 February 2008.
___________________International Journal of Special Education
Submitted on: 02 May 2019.
Revised on: 19 June 2019.
Accepted on: 02 August 2019.
___________________International Journal of Special Education