Etissa, E., N. Dechassa, T. Alamirew, Y. Alemayehu, and L. Desalegne. “Irrigation Water Management Practices in Smallholder Vegetable Crops Production: The Case of the Central Rift Valley of Ethiopia”. Journal of Science, Technology and Arts Research, vol. 3, no. 1, Mar. 2014, pp. 74-83, https://journals.wgu.edu.et/index.php/star/article/view/474.