Sumber referensi lain tentang pertanian organik.

Indonesian Websites http://www.pplh.or.id http://www.terranet.or.id http://www.elsppat.or.id http://sahani.org

International Websites http://www.askorganic.co.uk http://www.australianorganic.com.au http://www.defra.gov.uk/farm/organic/index.htm http://doleorganic.com http://www.exclusivelyorganic.co.nz http://www.gardenorganic.org.uk http://www.organic-center.org http://www.newmansownorganics.com http://www.ams.usda.gov http://www.ocia.org http://www.organicconsumers.org http://www.linksorganic.com http://www.pan-uk.org http://www.organic.org http://selectorganic.com.au http://www.missouriorganic.com