ABUBAKAR, M.; ABDULLAHI, H.; SANI YABAGI, M. Concealed Beam in Reinforced Concrete Structures: A Performance-Based Analysis. Nigerian Journal of Science and Engineering Infrastructure, [S. l.], v. 2, 2024. Disponível em: https://njsei.org.ng/index.php/nsjei/article/view/27. Acesso em: 10 jun. 2026.