Jamal Mohamad FA, Abdul Rahim R, Ahmad N, Jamaludin J, Ibrahim S, Fazalul Rahiman MH, et al. Concrete-Defect Detection Using New Ultrasonic Array. Elektrika [Internet]. 2021 Oct. 15 [cited 2024 May 4];20(2-3):87-92. Available from: https://elektrika.utm.my/index.php/ELEKTRIKA_Journal/article/view/316