Submitted on: 15 January 2021.
Revised on: 12 February 2021.
Accepted on: 21 March 2021.
___________________Augmentative and Alternative Communication
Submitted on: 25 January 2013.
Revised on: 26 March 2013.
Accepted on: 07 April 2013.
___________________Augmentative and Alternative Communication
Submitted on: 03 January 2003.
Revised on: 08 March 2003.
Accepted on: 23 April 2003.
___________________Augmentative and Alternative Communication
Submitted on: 17 August 2006.
Revised on: 10 November 2006.
Accepted on: 28 December 2006.
___________________Augmentative and Alternative Communication
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Submitted on: 28 July 2000.
Revised on: 15 November 2000.
Accepted on: 29 December 2000.
___________________Augmentative and Alternative Communication
Submitted on: 18 February 2010.
Revised on: 09 April 2010.
Accepted on: 19 May 2010.
___________________Augmentative and Alternative Communication
Submitted on: 05 January 2017.
Revised on: 13 February 2017.
Accepted on: 21 March 2017.
___________________Augmentative and Alternative Communication
Submitted on: 16 September 2006.
Revised on: 01 November 2006.
Accepted on: 28 December 2006.
___________________Augmentative and Alternative Communication
Submitted on: 27 March 2002.
Revised on: 27 June 2002.
Accepted on: 16 August 2002.
___________________Augmentative and Alternative Communication