Hamid, Ahmed Abd Ali., and Abdul Rahman A. Alsabbagh. “Effect of Moldboard Types, Two Depths of Tillage and Two Speeds of Tractor in Some Physical Properties and Pulverization of Soil”. Kufa Journal for Agricultural Sciences, vol. 15, no. 1, June 2023, pp. 105-16, https://doi.org/10.36077/kjas/2023/v15i1.10334.