ABD ELAziz, Mohamed, and Sewar Yousef. “Beneficial Effect Of Zink Spraying On Growth and Yield Safflower Plants (Carthamus Tinctorius L.)”. Tishreen University Journal -Biological Sciences Series 41, no. 6 (December 16, 2019). Accessed May 5, 2024. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/9291.