Submitted on: 27 October 2009.
Revised on: 28 December 2009.
Accepted on: 17 January 2010.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE
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Submitted on: 28 November 2017.
Revised on: 19 January 2018.
Accepted on: 12 March 2018.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE
Submitted on: 03 June 1999.
Revised on: 17 August 1999.
Accepted on: 10 October 1999.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE
Submitted on: 27 October 2009.
Revised on: 22 January 2010.
Accepted on: 19 March 2010.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE
Submitted on: 03 February 2008.
Revised on: 23 May 2008.
Accepted on: 15 June 2008.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE
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Submitted on: 02 March 2000.
Revised on: 18 May 2000.
Accepted on: 12 June 2000.
___________________JOURNAL OF APPLIED BEHAVIORAL SCIENCE