Hammad, A., Mohamed, I., & Idris, S.
(2017).
Effects of sowing date and intercropping on yield, yield components and oil content of sunflower and groundnut in a desert environment in northern Sudan.
المجلة الزراعية, 15(1).
مسترجعة من http://journals.uofg.edu.sd/index.php/gjas/article/view/861