2019. Using Geographic Information System (GIS) to estimate the volume of water for Al Dammam unconfined Aquifer within Al Salman basin, Al- Muthana Governorate, South West Iraq. Iraqi Journal of Science. 60, 7 (Jul. 2019), 1478–1485. DOI:https://doi.org/10.24996/ijs.2019.60.7.8.