Zulkafle, Muhammad Haqimi, and Nasradeen . A . Khalifa. “A Review on the Use of Waste Plastic Material in Pavement”. Recent Trends in Civil Engineering and Built Environment, vol. 2, no. 1, June 2021, pp. 491-9, https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/1421.