Nedaw, D., N. T. Tafesse, K. Woldearegay, T. Gebreyohannes, F. V. Steenbergen, and L. Willibald. “Groundwater Based Irrigation and Food Security in Raya-Kobo Valley, Northern Ethiopia”. Asian Review of Environmental and Earth Sciences, vol. 5, no. 1, Dec. 2018, pp. 15-21, doi:10.20448/journal.506.2018.51.15.21.