AL-ZEBARI, P. J. M., and T. Z. SARHAN. “EFFECT OF LICORICE ROOT EXTRACT AND HUMIC ACID ON YIELD CHARACTERS OF SUMMER SQUASH (Cucurbita pepoL.)”. Journal of Duhok University, Vol. 22, no. 2, Feb. 2020, pp. 49-60, doi:10.26682/ajuod.2019.22.2.5.