“The Effect of Foliar Application of Boron and Zinc on Physical and Chemical Characterizations of Fruit the Orange Tree (Valencia Variety)”. Tishreen University Journal -Biological Sciences Series 41, no. 6 (December 10, 2019). Accessed November 25, 2024. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/9281.