1. Azene, B., 2001. Status and dynamics of natural resources in Ethiopia. In: Taye A. (Ed.), Food Security Through Sustainable Land Use: Population, Environment and Rural Development Issues for Sustainable Livelihoods in Ethiopia. NOVIB Partners Forum on Sustainable Land Use, Addis Ababa, Ethiopia, pp. 165–184.
2. Farmers’ participation in soil and water conservation activities in Chemoga watershed, Blue Nile Basin, Ethiopia;Bewket;Land Degrad. Dev.,2002
3. Indigenous soil and water conservation: a review of the state of knowledge and prospects for building on traditions;Critchley;Land Degrad. Rehabil.,1994
4. Using indigenous knowledge to improve agriculture and natural resource management;DeWalt;Hum. Organisation,1994
5. Dingman, S.L., 1994. Physical Hydrology. Macmillan, New York.