Submitted on: 04 November 2011.
Revised on: 21 December 2011.
Accepted on: 09 January 2012.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
Submitted on: 20 February 2021.
Revised on: 07 June 2021.
Accepted on: 16 July 2021.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
http://reply.papertrans.cn/2/164/16312/16312-13.png
http://reply.papertrans.cn/2/164/16312/16312-14.png
Submitted on: 02 May 2005.
Revised on: 26 June 2005.
Accepted on: 21 July 2005.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
http://reply.papertrans.cn/2/164/16312/16312-16.png
Submitted on: 21 July 2011.
Revised on: 02 November 2011.
Accepted on: 30 November 2011.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
Submitted on: 24 July 2007.
Revised on: 04 September 2007.
Accepted on: 27 September 2007.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
Submitted on: 10 December 2001.
Revised on: 27 March 2002.
Accepted on: 08 April 2002.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES
Submitted on: 14 May 2002.
Revised on: 12 June 2002.
Accepted on: 23 June 2002.
___________________JOURNAL OF DEVELOPMENTAL AND PHYSICAL DISABILITIES