Jasman, R. . Djamaluddin, R. . Irmawaty, and A. A. . Amiruddin. “Effect of Reinforcement of Hybrid Layer FRP (GFRP and CFRP) on Bending Behavior of Reinforced Concrete Beams”. Nusantara Science and Technology Proceedings, vol. 2022, no. 25, July 2022, pp. 50-55, doi:10.11594/nstp.2022.2508.