1. Verðmætamat á náttúruminjum og útivist: CV-könnun í Skagafirði;Ásgrímsdóttir;Lokaritgerð Háskóla Íslands, Reykjavík, Icel.,1998
2. Antony, J., Rao, A., 2010. Contingent Valuation: A Review with Emphasis on Estimation Procedures. Retrieved from: 〈http://interstat.statjournals.net/INDEX/Jul10.html〉, (accessed 26.03.16).
3. Report of the NOAA panel on contingent valuation;Arrow;Fed. Regist.,1993
4. Environmental cost-benefit analysis;Atkinson;Annu. Rev. Environ. Resour.,2008
5. Valuing Environmental Preferences: Theory and Practice of the Contingent Valuation Method in the Us, Eu, and Developing Countries;Bateman,2001