Influence Utilization Waste Plastic Polyethylene Terephthalate on the Flexural Strength of Concrete with Use East Kalimantan Aggregate. CIVED [Internet]. 2023 Sep. 4 [cited 2026 Jun. 11];10(3):766-7. Available from: https://cived.ppj.unp.ac.id/index.php/CIVED/article/view/443