Hessain, T. F. . and Bukalela, A. A. (2019) “ Effect of Nitrogen Fertilization Rates on Some Physiological Properties of Barley Crop (Hordeum vulgare L.) in Marwa and Al-Wasitah Regions in Al-Jabal Al-Akhdar, Libya”., Al-Mukhtar Journal of Sciences. Al Bayda, Libya, 34(2), pp. 134–140. doi: 10.54172/mjsc.v34i2.86.