Kamruzaman, Nurshazlynn, and Dr. Nurul Hidayah Mohd Kamaruddin. “Non-Destructive Method for Asphalt Pavement Evaluation: A Review”. Recent Trends in Civil Engineering and Built Environment, vol. 2, no. 1, June 2021, pp. 315-22, https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/1500.