Horton, D. 2008. Facilitating Pro-poor Market Chain Innovation: An Assessment of the Participatory Market Chain Approach in Uganda. International Potato Center (CIP), Lima. 46 pp. www.papandina.org/fileadmin/documentpool/Institucional/Libro/PMCA-uganda.pdf.
Information on organic agriculture by FAO with detailed country reports including the legal situation, www.fao.org/organicag/
Information about the US NOP, www.ams.usda.gov/nop/indexIE.htm
The Codex Alimentarius Commission and the FAO/WHO Food Standards Programme: Organically Produced Foods. Rome, www.codexalimentarius.net/ download/standards/360/CXG_032e.pdf