1. Abdulkadir M (2009) Assessment of Micro-Dam Irrigation Projects and Runoff Predictions for Ungauged Catchments in Northern Ethiopia, Ph.D. Dissertation, Muenster University, Germany
2. Alene M, Jenkin G, Leng M, Darbyshir F (2006) The Tamben Group, Ethiopia: an early Cryogenian (Ca. 800–735 Ma) Neoproterozoic sequence in the Arabian-Nubian Shield. Precambrian Res 147:79–99
3. Appelo CAJ, Postma D (2005) Geochemistry, groundwater, and pollution (2nd edn). Balkema, Amsterdam, p 635
4. Arkin Y, Beyth M, Dow DB, Levitte B, Haile T, Hailu T (1971) The Geological map of Mekele area. Ministry of Mines of Ethiopia, Addis Ababa
5. Asrat A, Barbey P, Gleizes G (2001) The Precambrian geology of Ethiopia: a review. Afr Geosci Rev 18:271–288