

Alemayehu, A. 2009. Impact of Terrace Development and Management on Soil Properties in Anjeni Area, West Gojam: MA Thesis. Addis Ababa: School of Graduate Study of Addis Ababa University.
Amaya-Hernandez, S. and Carmona-Munoz, I. 1988. Evaluation of forage grasses in the soil of intermittent flood in Jalapa, Tabasco, Mexico. In: Pizarro, E. A. (ed.) 1a. Reunion at RIEPTCAC, November 17-19, 1988, Veracruz, Mexico.INIFAP and CIAT, Cali, Colombia. p. 266-269.
Cochran, W.G. 1977. Sampling Techniques. 3rd ed. New York: John Wiley & Sons
Dawit, O. 2014. Assessment Of Farmers‘ Adoption Of Land Rehabilitation Practices: The Case Of Manasibu District, West Wollega Zone, Oromiya Regional State, Ethiopia. MSC thesis submitted to school of Graduate studies of Adis Ababa University
Gaston, K.J. 1998. Biodiversity. In Sutherland, W.J. (Eds), Conservation Science and Action, Blackwell Synergy, Oxford, pp.1-19.
ICRA (International Center for Development Oriented Research in Agriculture, (1998), A Participatory Systems Analysis of the Termite Situation in West Wollega, Oromia, Ethiopia. Wageningen, The Netherlands: pp 1-152.
Kumble, V. 1996.. Brachiaria: Biology, Agronomy, and Improvement. CIAT.
ManasibuWoreda Office of Agriculture and Natural Resource office (2017); Unpublished Office Report, Mendi, Ethiopia
MEA (Millennium Ecosystem Assessment) (2005).Ecosystem and human well being: Synthesis. Washington, D.C.: Island Press.
Rika I.K., Mendra, I.K., Gusti, M. and Oka Nurjaya, M.G. 1991. New forage species for coconut plantations in Bali. Shelton H.M. &Stur W.W. (ed.). Forages for plantation crops: proceedings of a workshop, Sanur Beach, Bali, Indonesia, 27-29 June 1990. ACIAR proceedings, Canberra, A.C.T. Australia. 32: 41-44.
Singh, R.J. 2009. Genetic Resources, Chromosome Engineering, and Crop Improvement. Series Forage Crops Volume 5, Publisher: CRC Press (Taylor & Francis Group), Boca Raton, Florida
Tafera, M., Teketay, D., Hulten, H. and Yemshaw, Y. 2005. The role of enclosures in the recovery of woody vegetation in degraded dryland hillsides of central and northern Ethiopia. Journal of Arid Environments 60(2): 259-281.
Uitto, J.I. and Manshard, W. 1993. Sustainable environmental and resource management futures for Sub-Saharan Africa. GeoJournal 31(1): 105-6.
UNEP. 1992. World Atlas of Desertification. United Nations Environmental Program. London. 69 pp.
Wandewessen, G. 2009. Area closure as a Strategy of Biodiversity Conservation and Degraded Land Rehabilitation: The Cases of Gubo and Ninikotto, North Wello. MSc Thesis submitted to school og graduate studies of Addis Ababa University.
WCMC.1992. Global Biodiversity: A status of the earth.s living resources. World Conservation Monitoring Center. Chapman and Hall, London.
Wild, A. 1993. Soils and the Environment. Cambridge University Press.
Wilson, G.V., Jardine, P.M. and Luxmoore, R.J. 1988. Modeling the transport of inorganic ions through undisturbed soil columns from two contrasting watersheds. Soil Science Society of America Journal 52(5):1252-1259.