El Ame, F., J. N. Mwero, and C. K. Kabubo. “Openings Effect on the Performance of Reinforced Concrete Beams Loaded in Bending and Shear”. Engineering, Technology & Applied Science Research, vol. 10, no. 2, Apr. 2020, pp. 5352-60, doi:10.48084/etasr.3317.