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Submitted on: 28 October 2009.
Revised on: 09 December 2009.
Accepted on: 22 December 2009.
___________________INTERNATIONAL JOURNAL OF PUBLIC OPINION RESEARCH
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Submitted on: 05 November 2009.
Revised on: 16 January 2010.
Accepted on: 12 February 2010.
___________________INTERNATIONAL JOURNAL OF PUBLIC OPINION RESEARCH
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Submitted on: 03 September 2005.
Revised on: 20 December 2005.
Accepted on: 24 January 2006.
___________________INTERNATIONAL JOURNAL OF PUBLIC OPINION RESEARCH
Submitted on: 22 February 2008.
Revised on: 12 May 2008.
Accepted on: 20 June 2008.
___________________INTERNATIONAL JOURNAL OF PUBLIC OPINION RESEARCH
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http://reply.papertrans.cn/2/141/14018/14018-29.png
Submitted on: 17 February 2009.
Revised on: 27 March 2009.
Accepted on: 13 May 2009.
___________________INTERNATIONAL JOURNAL OF PUBLIC OPINION RESEARCH