Ismaeel, O.A., Yahya, B.M. and Ahmed, K.A. 2022. DEVELOPING WATERSHED ANALYSIS TOOL IN GIS ENVIRNOMENT. Journal of Tikrit University for Humanities. 29, 8, 2 (Aug. 2022), 128–140. DOI:https://doi.org/10.25130/jtuh.29.8.2.2022.07.