1. . N. A. H. Abbas and S. H. Hamid, "The Effect of Turbidity, Gibberellin, and Fertilization with Humic Acid on the Growth and Productivity of Lana," Diyala Journal of Agricultural Sciences, vol. 8, no. 2, pp. 255-268, 2016.
2. . Y. M. Abu Dahi and A. Y. Muhammad, Plant Nutrition Guide, Mosul, Iraq: Dar Al-Kutub for Printing and Publishing, University of Mosul, Ministry of Higher Education and Scientific Research, 1988.
3. . A. M. Abu-Rayyan, Organic Matter (Specification and Importance in Human Health), 1st ed., Amman, Jordan: Dar-Wael for Publication and Distribution, University of Jordan, 2010, pp. 322.
4. . W. N. A. Al-Ati, "The Effect of the Moisture Preservative Driwater and Humic Acid on the Physiological Properties and Active Substances," M.S. thesis, College of Agriculture, Tikrit University, 2015.
5. . H. J. M. Al-Bayati, "Growth and Yield of Cauliflower as Affected by Boron and Fertilizer Type," International Journal of Agricultural and Statistical Sciences, vol. 15, no. 2, pp. 595-599, 2019.