J. A. Franco Huaman, J. C. Flores Olivo, N. CAMPOS VASQUEZ, and R. K. Manturano Chipana, “Comparison of Polyethylene Terephthalate and Fly Ash as an additive in Concrete”, LACCEI, vol. 2, no. 11, Dec. 2024, doi: 10.18687/LEIRD2024.1.1.820.