محـــمد جمــيل صـــباح, فتحي مصطفى عنــاد, and شكيب الصراف زياد. “Effect of the Change of Depth and Location of Transverse Cracks on Frequencies of Rotating Shaft”. Journal of Engineering and Sustainable Development 12, no. 1 (March 1, 2008): Ar-1-Ar-15. Accessed April 26, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1631.