Livelihood diversification strategies, incomes and soil management strategies: a case study from Kerio Valley, Kenya.Published in:Journal of International Development, 2008, v. 20, n. 3, p. 380, doi. 10.1002/jid.1419By:Iiyama, Miyuki;Kariuki, Patrick;Kristjanson, Patti;Kaitibie, Simeon;Maitima, JosephPublication type:Article