Alzawi, Munzer, Safwan Abdullah, Jihad Ibraheem, and Ammar Alnemr. “Prediction by Improving the Characteristics of Compaction and Strength in the Expansive Soils According to Its Content of Sand”. Tishreen University Journal -Engineering Sciences Series 42, no. 5 (December 2, 2020). Accessed June 6, 2023. http://journal.tishreen.edu.sy/index.php/engscnc/article/view/10063.