Ashour, D. S. ., S. H. . Adday, and K. A. . Al-Mosawi. “Effect of Gravel-Sand Mole Drains on Soil Electrical Conductivity and Exchanged Sodium Percentage”. Basrah Journal of Agricultural Sciences, vol. 35, no. 2, Dec. 2022, pp. 326-40, doi:10.37077/25200860.2022.35.2.25.