احمد محمد الدوري س. (2011) “Effect of Sowing Dates on Growth, Yield and Quality of Three Canola Cultivars (Brassica napus L.)”, College of Basic Education Research Journal, 10(4), pp. 550–569. Available at: https://stats.uomosul.edu.iq/index.php/berj/article/view/39686 (Accessed: 26 October 2025).