Ahmed, Rozhgar. " Oil Percent and Unsaturated Fatty Acid Response of Rapeseed Cultivars to Nitrogen and Phosphorus Fertilizers in Two Different Sowing Date." Tikrit Journal for Agricultural Sciences مجلة تكريت للعلوم الزراعية [Online], 18.4 (2018): 29-38. Web. 14 Aug. 2021