1. People, Parks and Poverty: Political Ecology and Biodiversity Conservation;Adams;Conservation and Society,2007
2. Adolph , Christopher Daniel M. Butler Sven E. Wilson 2005 Like Shoes and Shirt, One Size Does Not Fit All http://eppsac.utdallas.edu/files/pluemper/Adolph_butler_wilson.pdf
3. Does It Pay to Be Green? A Systematic Overview;Ambec;Academy of Management Perspectives,2008
4. Arbetman-Rabinowitz , Marina Kristin Johnson 2007 Relative Political Capacity: Theoretical and Empirical Underpinnings http://www.cgu.edu/Include/spe/Conf%20Pol%20Econ%20Indicators%202007/Arbetman-Rabinowitz%20Johnson%20RPC%202007%20Claremont.pdf
5. Freedom, Growth and the Environment;Barret;Environment and Development Economics,2000