Khawla H. H. Shubber, A.P.D. and Ali S. M. Alkizwini, E. 2018. Using Waste Asphalt Concrete (WAC) for Improving Poorly sandy Graded (PSG) Subgrade Soil. International Journal of Engineering & Technology. 7, 4.20 (Nov. 2018), 472–476. DOI:https://doi.org/10.14419/ijet.v7i4.20.26245.