By Lenné J.M.   Pink D.A.C.   Spence N.J.   Ward A.F.   Njuki J.   Ota M.   in Outlook on Agriculture

ISSN:0030-7270|34|4|225-232

IP Publishing Ltd‎(2005)‎

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By Njuki J.M.   Kihiyo V.B.M.   O'Ktingati A.   Place F.   in International Journal of Agricultural Resources, Governance and Ecology

ISSN:1462-4605|3|1-2|154-170

Inderscience Publishers‎(2004)‎

Access to resources Favorite 1.6417662