1. Access Economics 2007 Measuring the Economic and Financial Value of the Great Barrier Reef Marine Park, 2005-06 http://www.gbrmpa.gov.au/__data/assets/pdf_file/0017/22661/rp_87-GBRCA-economic-contribution-2005-06-final-report.pdf
2. Australian Bureau of Statistics 2006 Census of population and housing: Community Profile Series (Cat. No. 2001.0) Australian Bureau of Statistics http://www.abs.gov.au/
3. General equilibrium computations of the marginal welfare costs of taxes in the United States;Ballard;American Economic Review,1985
4. A travel cost analysis of the value of Carnarvon Gorge National Park for recreational use;Beal;Review of Marketing and Agricultural Economics,1995a
5. Estimation of the elasticity of demand for camping visits to a national park in south-east Queensland by the travel cost method;Beal;Australian Leisure,1995b