Eslami, Maryam, Hamid Dehghanzadeh, M. Jafarzade, and R. Aminian. “The Effect of Zinc on Yield and Yield Components of Sunflower (Helianthus.Annuus L. )under Drought Stress”. Scientific Journal of Crop Science 3, no. 6 (June 29, 2014): 61-65. Accessed July 22, 2024. http://sjournals.com/index.php/sjcs/article/view/1203.