1. Canadian Sheep Federation, 2004. The Canadian Sheep Identification Program (http://www.cansheep.ca/english/id_e.htm).
2. Canadian Sheep Federation, 2005. Canadian Food Safe Farm Practices (http://www.cansheep.ca/english/coffs_practices.htm).
3. Greenwood, P., 2004. Voluntary Scrapie Flock Certification Program. Canadian Food Inspection Agency (http://www.inspection.gc.ca/english/anima/heasan/man/scrtre/scrtre-a6e.shtml).
4. Kennedy, D., 2002. Ontario Ministry of Agriculture and Food. Ontario Sheep Improvement Program (http://www.gov.on.ca/OMAFRA/english/livestock/sheep/facts/info_sfip.htm).
5. Kyle, B., 2003. Ontario Sheep Marketing Agency—Ontario Sheep Health Program (http://www.ontariosheep.org/OSHP.HTML).