DINKHA, Y. Z., HAIDO, J. H., & ALI, M. H. (2017). FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS MADE WITH ORDINARY AND HIGH STRENGTH CONCRETES: EFFECT OF INTERFACIAL ROUGHNESS BETWEEN OLD AND NEW CONCRETES. Journal of Duhok University, 20(1), 570-579. https://doi.org/10.26682/sjuod.2017.20.1.50