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  1. 1

    The use of benefit transfer in the evaluation of water quality improvement an application in China מאת Du Yaping

    יצא לאור 1999
    ספר

    The use of benefit transfer in the evaluation of water quality improvement an application in China
  2. 2

    The value of improved water quality for recreation in East Lake, Wuhan, China application of contingent valuation and travel cost methods מאת Du Yaping

    יצא לאור 1998
    ספר

    The value of improved water quality for recreation in East Lake, Wuhan, China application of contingent valuation and travel cost methods

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