Awad Waryosh, Waleed, et al. “Behavior Of Rectangular Reinforced Concrete Beams Subjected To Bi-Axial Shear Loading”. Journal of Engineering and Sustainable Development, vol. 18, no. 2, Mar. 2014, pp. 106-21, https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/867.