Jumaah, Najm A., and Mohammad S. Kareem. “EFFECT OF PLANT DENSITY AND FERTILIZATION LEVELS ON YIELD AND YIELD COMPONENTS OF SOME VARIETIES OF SUNFLOWER (Helianthus Annuus L.) . ”. Diyala Agricultural Sciences Journal 7, no. 2 (December 30, 2015): 111–121. Accessed April 20, 2026. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1592.