1. APGO (Andhra Pradesh Government Order). The response of farmers on yield of the plant. G.O. Rt. No. 148, 16.12.2006. http://goir.ap.gov.in/Reports.aspx ; 2006.
2. Azam A. M.; Nahar N. M. Prospects and potential of fatty acid methyl esters of some non-traditional seed oils for use as bio-diesel in India. Biomass Bioenergy 294: 293–302; 2005. http://top25.sciencedirect.com/subject/energy/11/archive/7/ .
3. Bailey, R. Another inconvenient truth. Oxfam briefing paper. Oxfam International, June 2008. http://www.oxfam.org/pressroom/pressrelease/2008-06-25/another-inconvenient-truth-biofuels-are-not-answer ; 2008.
4. Banse M.; Nowicki P.; vanMeijl H. Why are current food prices so high. In: Zuurbier P.; van de Vooren J. (eds) Sugarcane ethanol: Contributions to climate change mitigation and the environment. Wageningen Academic, Wageningen, pp 227–248; 2008. http://library.wur.nl/way/bestanden/clc/1880664.pdf .
5. Bruce, E. H., Jamie, D. S., David, B. L. Canadian bio-diesel initiative: Aligning research needs and priorities with the emerging industry. Final report prepared for Natural Resources Canada http://www.greenfuels.org/bio-diesel/res/200408_BIOCAP_Bio-diesel04_Final.pdf ; 2004.