共 10 条
[7]
Willingness to pay for green electricity in Korea: A contingent valuation study[J] . Seung-Hoon Yoo,So-Yoon Kwak.Energy Policy . 2009 (12)
[8]
Eco-labelled food products: what are consumers paying for?[J] . Douadia Bougherara,Pierre Combris.European Review of Agricultural Economics . 2009 (3)
[10]
Food Safety and Quality as Affected by Organic Farming[EB/0L]. FAO. http://www.fao.org/docrep/meeting/X4983E.htm . 2000