Directorate for Trade and Agriculture, OECD (16 يوليو 2008). "Economic Assessment of Biofuel Support Policies"(PDF). منظمة التعاون الاقتصادي والتنمية. مؤرشف من الأصل(PDF) في 2015-09-24. اطلع عليه بتاريخ 2008-08-01. Disclaimer: This work was published under the responsibility of the Secretary-General of the OECD. The views expressed and conclusions reached do not necessarily correspond to those of the governments of OECD member countries.
Directorate for Trade؛ Agriculture, OECD (16 يوليو 2008). "Economic Assessment of Biofuel Support Policies"(PDF). منظمة التعاون الاقتصادي والتنمية. مؤرشف من الأصل(PDF) في 2008-07-18. اطلع عليه بتاريخ 2008-08-01. Disclaimer: This work was published under the responsibility of the Secretary-General of the OECD. The views expressed and conclusions reached do not necessarily correspond to those of the governments of OECD member countries.
Julia Duailibi (27 Apr 2008). "Ele é o falso vilão" (بالبرتغالية). Veja Magazine. Archived from the original on 2014-08-25. Retrieved 2008-04-28.
Donald Mitchell (يوليو 2008). "A note on Rising Food Crisis"(PDF). مجموعة البنك الدولي. مؤرشف من الأصل(PDF) في 2016-03-03. اطلع عليه بتاريخ 2008-07-29.Policy Research Working Paper No. 4682. Disclaimer: This paper reflects the findings, interpretation, and conclusions of the authors, and do not necessarily represent the views of the World Bank
Directorate for Trade and Agriculture, OECD (16 يوليو 2008). "Economic Assessment of Biofuel Support Policies"(PDF). منظمة التعاون الاقتصادي والتنمية. مؤرشف من الأصل(PDF) في 2015-09-24. اطلع عليه بتاريخ 2008-08-01. Disclaimer: This work was published under the responsibility of the Secretary-General of the OECD. The views expressed and conclusions reached do not necessarily correspond to those of the governments of OECD member countries.
Directorate for Trade؛ Agriculture, OECD (16 يوليو 2008). "Economic Assessment of Biofuel Support Policies"(PDF). منظمة التعاون الاقتصادي والتنمية. مؤرشف من الأصل(PDF) في 2008-07-18. اطلع عليه بتاريخ 2008-08-01. Disclaimer: This work was published under the responsibility of the Secretary-General of the OECD. The views expressed and conclusions reached do not necessarily correspond to those of the governments of OECD member countries.
Donald Mitchell (يوليو 2008). "A note on Rising Food Crisis"(PDF). مجموعة البنك الدولي. مؤرشف من الأصل(PDF) في 2016-03-03. اطلع عليه بتاريخ 2008-07-29.Policy Research Working Paper No. 4682. Disclaimer: This paper reflects the findings, interpretation, and conclusions of the authors, and do not necessarily represent the views of the World Bank
