Al-Najafi, I. and Mahdi, A. 2009. The Effect of Supplementary Irrigation on the Average of Wheat Productivity at Ninavah Governorate to the Agricultural Season (2001-2002). TANMIYAT AL-RAFIDAIN. 31, 93 (Mar. 2009), 306–334. DOI:https://doi.org/10.33899/tanra.2009.161840.