ALI HUSSAIN, M., ALO KHETHER, A. and MOHAMMED, M. O. (2018) “EFFECT OF HERBICIDE AND NITROGEN FERTILIZER LEVELSON WEED AND WHEAT YIELD IN DIFFERENT SOWING DATES.”, Journal of Duhok University, 20(1), pp. 73-86. doi: 10.26682/avuod.2017.20.1.10.