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Submitted on: 26 November 2009.
Revised on: 11 January 2010.
Accepted on: 04 February 2010.
___________________ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
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Submitted on: 29 October 2014.
Revised on: 20 December 2014.
Accepted on: 27 January 2015.
___________________ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
http://reply.papertrans.cn/1/86/8573/8573-25.png
Submitted on: 13 February 2013.
Revised on: 07 June 2013.
Accepted on: 20 June 2013.
___________________ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
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http://reply.papertrans.cn/1/86/8573/8573-28.png
Submitted on: 16 January 2001.
Revised on: 16 May 2001.
Accepted on: 08 June 2001.
___________________ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
Submitted on: 23 July 2008.
Revised on: 13 August 2008.
Accepted on: 20 September 2008.
___________________ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY