MATLOOB, Kafi; AL AMLI, Ali Sabah. Behavior of Composite Geopolymer Reinforced Concrete Beams with Openings using an Underneath Steel Plate. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 30, n. 2, p. 204–211, 2026. DOI: 10.31272/jeasd.2321. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2321.. Acesso em: 3 aug. 2026.