Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D01202
Notes:
Pages 171-177 in Chris Reij and Ann Waters-Bayer (eds.), Farmer innovation in Africa: a source of inspiration for agricultural development. Earthscan Publications, Ltd., London, England. 362 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C19676
Notes:
Pages 125-147 in Steven Wolf and David Zilberman (eds.), Knowledge generation and technical change: institutional innovation in agriculture. Kluwer Academic Publishers, Boston, Massachusetts. 371 pages.