MOHAMMED, G. H., and A. IHSAN SAEID. “EFFECT OF TOPPING, HUMIC ACID, MULCHING COLOR AND THEIR INTERACTIONS ON VEGETATIVE GROWTH AND SEED YIELD OF OKRA”. Journal of Duhok University, Vol. 20, no. 1, May 2018, pp. 41-49, doi:10.26682/avuod.2017.20.1.7.