1. Agarwal C, Green MG, Grove JM, Evans TP, Schweik CM. A Review and assessment of land use change models. Dynamics of space, time, and human choice. Center for the Study of Institutions, Population, and Environmental Change, Indiana University, and USDA Forest Service, Northeastern Research Station, South Burlington, VT, USA; 2000. p. 90.
2. Land use land cover of Tigray;Bureau of Agriculture,2001
3. Assessing and mapping areas susceptible to water erosion using integrated remote sensing GIS tools and minimal ground survey in the Atsibi sub-Watershed. A case study in Tigray region, Ethiopia;Gebremedhin,2004
4. Gete Z. Landscape dynamics and soil erosion process modeling in the North-Western Ethiopian highlands. PhD thesis. Institute of Geography, University of Berne, Switzerland; 2000.