Altalhe, Dr. Enas, and Eng. Ambaraka Faraj. “The Effect of Adding of Polystyrene on the Engineering Properties of Clay Soil”. The International Journal of Engineering & Information Technology (IJEIT) 10, no. 2 (January 22, 2024): 164–172. Accessed October 13, 2024. http://ijeit.misuratau.edu.ly/index.php/ijeit/article/view/36.