Semere, Soloman (23 December 2005). "Groundwater study using remote sensing and geographic information systems (GIS) in the central highlands of Eritrea". Hydrogeology Journal. 14 (5): 729–741. doi:10.1007/s10040-005-0477-y. S2CID55130364.
Semere, Soloman (23 December 2005). "Groundwater study using remote sensing and geographic information systems (GIS) in the central highlands of Eritrea". Hydrogeology Journal. 14 (5): 729–741. doi:10.1007/s10040-005-0477-y. S2CID55130364.
Semere, Soloman (23 December 2005). "Groundwater study using remote sensing and geographic information systems (GIS) in the central highlands of Eritrea". Hydrogeology Journal. 14 (5): 729–741. doi:10.1007/s10040-005-0477-y. S2CID55130364.
Semere, Soloman (23 December 2005). "Groundwater study using remote sensing and geographic information systems (GIS) in the central highlands of Eritrea". Hydrogeology Journal. 14 (5): 729–741. doi:10.1007/s10040-005-0477-y. S2CID55130364.