Z. Citra, P. D. Wibowo, Y. Malinda, A. Wibisono, R. Apdeni, and H. Herol, “Testing of Concrete Structures with Non-Destructive Test Method (NDT) Using Ultrasonic Pulse Velocity (UPV) at the Building on the Ancol Beach”, CIVED, vol. 11, no. 1, pp. 217–225, Mar. 2024.