Hessain, T. F. ., & 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, 34(2), 134–140. https://doi.org/10.54172/mjsc.v34i2.86