1. ARI, 2006. Undeveloped domestic oil resources: the foundation for increasing oil production and a viable domestic oil industry. US Department of Energy, Office of Fossil Energy, Washington, DC.
2. ASPO, 2008 (Association for the Study of Peak Oil & Gas, International), 〈http://www.peakoil.net/〉.
3. Bartlett, R., 2006. The Peaking of World Oil. Congressional Record, US House of Representatives, 〈http://www.aspousa.org/assets/pdf/BartlettFEB06.pdf〉.
4. Bilmes, L., Stiglitz, J., 2006. The economic costs of the Iraq War. Presentation at the Allied Social Sciences Associations, Boston, MA.
5. BP, 2008. BP statistical review of world energy, June 2008. British Petroleum Company, 〈http://www.bp.com/statisticalreview〉.