1. Alok, J. (2011). China ‘leads the world’ in renewable energy. Guardian. http://www.guardian.co.uk/environment/2008/aug/01/renewableenergy.climatechange . Retrieved March 03, 2011.
2. Bradsher, K. (2010) China leads global race to make clean energy. New York Times, http://www.nytimes.com/2010/01/31/business/energy-environment/31renew.html?_r=1 . Retrieved March 03, 2011.
3. Callum, C. (2010). China’s Clean Revolution report. Global Director of Communications http://www.theclimategroup.org/_assets/files/China-Clean-Revolution-III.pdf . Retrieved March 03, 2011.
4. Christensen, N. L., Bartuska, A. M., Brown, J. H., Carpenter, S., D’Antonio, C., Francis, R., et al. (1996). The report of the Ecological Society of America committee on the scientific basis for ecosystem management. Ecological Applications, 6, 665–691.
5. Goodland, R. (1995). The concept of environmental sustainability. Annual Review of Ecology and Systematics, 26, 1–24.