Naman Shah, and Vidhi Chudasama. “Comparison Between Two NDT Methods: Rebound Hammer Test and Ultrasonic Pulse Velocity Test for a Chemical Plant Structure Situated in Coastal Area”. International Journal of Advance Engineering and Research Development (IJAERD), vol. 3, no. 8, Aug. 2016, pp. 14-21, https://ijaerd.org/index.php/IJAERD/article/view/1567.