Mayi, Azad A. 2016. “Effect of Iron, KNO3, GA3 and Humic Acid on Growth and Leaf Nutrients of Almond (Prunus Amygdalus L.) Transplants 1-Vegetative Growth”. Science Journal of University of Zakho 4 (2):194-99. https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/347.