Saadoon Al-Yassri, Labeeb, Alaa Mahdi Al-Khekany, and Hajer Satea Abbas. 2018. “Experimental Study of Replacement the Tension Reinforcing Bars in Concrete Beams by Steel Pipes”. International Journal of Engineering & Technology 7 (4.20): 229-34. https://doi.org/10.14419/ijet.v7i4.20.25931.