Al-Turfi, D. M. M. . ., and S. A. Mashkoor. “Effect of Foliar Application of Humic Acid on Growth and Flowering in Freesia Hybrida”. Journal of Kerbala for Agricultural Sciences, vol. 9, no. 3, Sept. 2022, pp. 124-32, doi:10.59658/jkas.v9i3.1001.