/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: davidbasantes1 https://cdn.slidesharecdn.com/profile-photo-davidbasantes1-48x48.jpg?cb=1523581013 Estudiante de la U central de Ecuador con propósitos de graduarme de Ing. Civil