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* [http://www.unep.fr/scp/rpanel/pdf/Assessing_Biofuels_Full_Report.pdf Towards Sustainable Production and Use of Resources: Assessing Biofuels], [[United Nations Environment Programme]], October 2009
* [http://www.uduko.com/topic_detail/details/35 Ethanol blended petrol usage in Brazil]
* [http://econ.worldbank.org/WBSITE/EXTERNAL/EXTDEC/EXTRESEARCH/EXTWDRS/EXTWDR2008/0,
* {{dmoz|Science/Technology/Energy/Renewable/Biomass_and_Biofuels/Ethanol/|Biofuels: Ethanol}}
* [http://www.greentechmedia.com/articles/ethanol-better-than-gasoline-if-done-right-5855.html Ethanol Better Than Gasoline, If Done Right]
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