Shafiqu, Qassun Sa'ad Al-Deen Mohammed, and Murtadha A. Abdulrassol. “Database of Dynamic Soil Properties for Most Iraq Soils”. American Scientific Research Journal for Engineering, Technology, and Sciences 37, no. 1 (November 5, 2017): 230–254. Accessed September 17, 2025. https://asrjetsjournal.org/American_Scientific_Journal/article/view/3455.