AL-Baddrani, W., and Ibrahim A. AL-Romy. “The Effect of Different Levels of Nitrogen Fertilizer (urea) on Some Characteristics Wheat Growth Cultivars (spp. Triticum)”. College of Basic Education Research Journal 12, no. 3 (September 1, 2013): 723–732. Accessed October 26, 2025. https://stats.uomosul.edu.iq/index.php/berj/article/view/38044.