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Urgesa, Alemayehu A. and Abegaz, Assefa and Bahir, Asmamaw L. and Antille, Diogenes L. (2016) Population growth and other factors affecting land-use and land-cover changes in north-eastern Wollega, Ethiopia. Tropical Agriculture, 93 (4). pp. 298-311. ISSN 0041-3216
Hermawan, Agus and Mushtaq, Shahbaz and Hafeez, Mohsin (2008) Reappraisal of land and water conservation farming in slope upland areas for sustainable agriculture in Indonesia. In: 2008 Western Pacific Geophysics Meeting, 29 July - 1 Aug 2008, Cairns, Australia.