1. ABOISSA, 2007. Available from http://www.aboissa.com.br.
2. ANP, 2008. Resolution ANP 7 of 19 March 2008. Available from http://nxt.anp.gov.br/NXT/gateway.dll/leg/resolucoes_anp/2008/mar%C3%A7o/ranp%207%20-%202008.xml?f=templates$fn=document-frame.htm$3.0$q=$x=$nc=8430. Official Daily Journal of 20 March 2008 (in Portuguese Language). Technical Regulation No. 1/2008.
3. BAHIGAS, 2007. Available from www.bahiagas.com.br.
4. Economic feasibility review for community-scale farmer cooperatives for biodiesel;Bender;Bioresour Technol,1999
5. A pilot plant to produce biodiesel from high free fatty acid feedstocks;Canakci;Trans ASAE,2003