Haddad, G.A. “Effect of Nitrogen Level on the Growth , Yield & Yield Components of Durum Wheat ( Triticum Durum ) under Supplementary Irrigation and Rainfed Conditions”. Al-Mukhtar Journal of Sciences, vol. 2, no. 1, Dec. 1995, pp. 59-86, doi:10.54172/mjsc.v2i1.451.