Yacouba Sawadogo (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Yacouba Sawadogo" in Simple English language version.

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ifpri.org

Kaboré, Daniel and Chris Reij. "The Emergence and Spreading of an Improved Traditional Soil and Water Conservation Practice in Burkina Faso". International Food Policy Research Institute, February 2004. http://www.ifpri.org/publication/emergence-and-spreading-improved-traditional-soil-and-water-conservation-practice-burkin (last accessed 10 April 2010)

Mann, Charles C. "Our Good Earth: The future rests on the soil beneath our feet." National Geographic, September 2008. http://ngm.nationalgeographic.com/2008/09/soil/mann-text (last accessed 15 September 2008)

Indigenous Knowledge Notes #77, The World Bank, February 2005. http://www.worldbank.org/afr/ik/iknt77.htm (last accessed 15 September 2008)