Al-Alkawi, H.J.M. et al. 2020. Combine Shot Penning (SP) and Ultrasonic Impact Treatment (UIT) for Soil Corrosion Buckling Strength Enhancement of AA 2014-T4. Al-Nahrain Journal for Engineering Sciences. 23, 2 (Sep. 2020), 144–152. DOI:https://doi.org/10.29194/NJES.23020144.