Khdher, Adel K., and Omar A. Fattah. 2013. “Effect of Mycorrhiza and Rhyzobium on Micronutrient Uptake by Soybean at Different Phosphorus Levels in Limed Soil”. Science Journal of University of Zakho 1 (2): 556-68. https://www.sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/266.