ABDUL AZIZ, MUHAMMAD AZHAN, and Mustafa Kamal Shamshuddin. “Investigation of Using Plastic Waste in Asphalt Concrete Mixture As Binder Modifier”. Recent Trends in Civil Engineering and Built Environment, vol. 3, no. 1, Dec. 2021, pp. 469-75, https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3255.