S. SADIQ HASAN, G. YOUSIF HAJI, A. B. ABDULLAH, H. Y. HAJI, H. S. MAHDI, and S. YOUSSEF, “RECREATIONAL USE VALUE OF SHERANA VALLEY IN DUHOK GOVERNORATE, KURDISTAN REGION OF IRAQ”, JDU, vol. 24, no. 1, pp. 19-31, May 2021.