Damayanti, D. I., A. M. Indriani, and G. Utomo. “Influence Utilization Waste Plastic Polyethylene Terephthalate on the Flexural Strength of Concrete With Use East Kalimantan Aggregate”. CIVED, vol. 10, no. 3, Sept. 2023, pp. 766-7, doi:10.24036/cived.v10i3.443.