ALKHAFAJI, F. J.; IZZET, A. F. Prestress Losses in Concrete Rafters with Openings. Engineering, Technology & Applied Science Research, Greece, v. 10, n. 2, p. 5512–5519, 2020. DOI: 10.48084/etasr.3390. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/3390. Acesso em: 6 jul. 2022.