SETH, ZULKEFLI, and MOHAMAD YUSRI AMAN. “A A Study on Fly Ash Geopolymer Modified Asphalt Binder”. Recent Trends in Civil Engineering and Built Environment, vol. 3, no. 1, Jan. 2022, pp. 1150-61, https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3183.