- http://www.geodynamics.com.au/IRM/content/hfr_renewenergy.html
- http://ezinearticles.com/?How-Do-Electric-Companies-Produce-Electricity-Commercially?&id=3901778
- We Are the Weather Makers, the story of global warming. Flannery, Tim. 2006, the text Publishing Company, Melbourne.
- http://www.pir.sa.gov.au/geothermal
- http://www.clean-energy-ideas.com/articles/how_does_geothermal_energy_work.html
- google images
INFORMATION SOURCES...
THESE ARE THE SOURCES I GOT INFORMATION FROM...
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