Y.Hachum, D. and GH, Z. 2013. Estimating Runoff Coefficient for Water Harvesting atTal-Abta Area- Nineveh Governorate. Al-Rafidain Engineering Journal (AREJ). 21, 5 (Oct. 2013), 41–52. DOI:https://doi.org/10.33899/rengj.2013.79414.