1. World population prospects, the 2010 Revision.,2011
2. http://www.fao.org/fileadmin/templates/wsfs/docs/expert_paper/How_to_feed_the_World_2050.pdf
3. Can Small-Scale Farmers Feed the World?http://www.iied.org
4. http://www.srfood.org/images/stories/pdf/otherdocuments/20102309_briefing_note_02_en_ok.pdf
5. Democratizing research for food sovereignty in West Africa;Pimbert;J. Peasant Studi.,2010