1. http://www.fao.org/docrep/005/y2200e/y2200e07.htm
2. http://ec.europa.eu/sanco_pesticides/public/index.cfm?event=homepage&CFID=9597831&CFTOKEN=90593127&jsessionid=080465de6b121c19396dTR
3. http://ec.europa.eu/health/veterinary-use/maximum-residue-limits/regulations_en.htm
4. http://www.codexalimentarius.net/pestres/data/index.html?lang=en
5. http://www.codexalimentarius.net/vetdrugs/data/index.html?lang=en