Aburas, Murad M., Mohammed, S. Yousuf Yousuf, and Mhi eldin M.H. Alkhboli. 2020. “ The Effect of Check Dams and the Use of Semi-Arid Slopes on Runoff and Soil Loss, at Some Valleys of the South of Al-Jabal Al-Akhdar, Libya”. Al-Mukhtar Journal of Sciences 35 (1). Al Bayda, Libya:69-83. https://doi.org/10.54172/mjsc.v35i1.367.