1. Berkes, F., Colding, J. & Folke, C. (Eds.). (2003).Navigating social–ecological systems: Building resilience for complexity and change. New York, NY: Cambridge University Press.
2. Brown, Z., Cole, R., O'Shea, M. & Robinson, J. (2009). From occupant to inhabitant: new expectations in delivering sustainable buildings. InProceedings of the 26th Conference on Passive and Low Energy Architecture, Quebec City, QC, Canada, June 22–24.
3. Costanza, R., Graumlich, L. & Steffen, W. L. (2007).Sustainability or collapse? An integrated history and future of people on earth. Cambridge, MA: MIT Press.
4. Diamond, J. (2005).Collapse: How societies choose to fail or succeed. New York, NY: Viking Penguin.
5. du Plessis, C. (2009).An approach to studying urban sustainability from within an ecological worldview(Unpublished doctoral thesis), University of Salford.