SIDDIQUI, Faruq M.A.; USMAN, Ali. LRFD Aid for Tubeshaped Beams. Engineering Journal, [S. l.], v. 27, n. 2, p. 79–81, 1990. DOI: 10.62913/engj.v27i2.544. Disponível em: https://ej.aisc.org/index.php/engj/article/view/544. Acesso em: 9 oct. 2024.