A. M. H. H. Al-Khafaji, “STIMULATION GROWTH, YIELD, AND ACCUMILATION OF ANTIOXIDANT COMPOUNDS OF ONION HYBRIDS BY COLORED SHADES OF POLY ETHYLENE COVERS”, Iraqi J. Agric. Sci., vol. 50, no. 6, Dec. 2019, doi: 10.36103/ijas.v50i6.847.