ZAHN, Mark C. The Economies of LRFD in Composite Floor Beams. Engineering Journal, [S. l.], v. 24, n. 2, p. 87–92, 1987. DOI: 10.62913/engj.v24i2.484. Disponível em: https://ej.aisc.org/index.php/engj/article/view/484. Acesso em: 9 oct. 2024.