محمد وحيد حسن م. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., “Spatial Variation of Pure Water Service and Its Future Prospects in Iraq”, lark, vol. 13, no. 2, pp. 1113–1094, Mar. 2021, doi: 10.31185/lark.Vol2.Iss41.1732.