Submitted on: 06 August 2019.
Revised on: 16 September 2019.
Accepted on: 03 October 2019.
Water Economics and Policy---WORLD SCIENTIFIC PUBL CO PTE LTD
Submitted on: 26 May 2000.
Revised on: 19 June 2000.
Accepted on: 09 July 2000.
Water Economics and Policy
Submitted on: 08 March 2001.
Revised on: 18 April 2001.
Accepted on: 15 May 2001.
Water Economics and Policy
http://reply.papertrans.cn/4/306/30556/30556-34.png
http://reply.papertrans.cn/4/306/30556/30556-35.png
Submitted on: 20 November 2008.
Revised on: 29 December 2008.
Accepted on: 08 January 2009.
Water Economics and Policy---WORLD SCIENTIFIC PUBL CO PTE LTD