1. http://www.ifoam.org/about_ifoam/standards/norms/norm_documents_library/Norms_ENG_V4_20090113.pdf
2. The world of organic agriculture 2009: Summary;Willer,2009
3. Overview of the Global Market for Organic Food and Drink;Sahota,2004
4. http://www.organicagcentre.ca/Docs/RetailSalesOrganic_Canada2006.pdf
5. http://www.inspection.gc.ca/english/fssa/orgbio/orgbioe.shtml