MODIFICATION OF PORTAL METHOD FOR ANALYZING THE FRAMES. Journal of Engineering and Sustainable Development, [S. l.], v. 21, n. 3, p. 136–155, 2017. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/540.. Acesso em: 3 may. 2024.