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Submitted on: 03 October 1998.
Revised on: 12 November 1998.
Accepted on: 30 December 1998.
___________________JOURNAL OF SPECIAL EDUCATION---SAGE PUBLICATIONS INC
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Submitted on: 25 August 2007.
Revised on: 30 November 2007.
Accepted on: 17 January 2008.
___________________JOURNAL OF SPECIAL EDUCATION---SAGE PUBLICATIONS INC
Submitted on: 05 March 2005.
Revised on: 23 April 2005.
Accepted on: 26 May 2005.
___________________JOURNAL OF SPECIAL EDUCATION---SAGE PUBLICATIONS INC