/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: pabloamontoya96 https://cdn.slidesharecdn.com/profile-photo-pabloamontoya96-48x48.jpg?cb=1523402439 Estudiante de Maestría en construcción Universidad Nacional de Colombia Sede Bogotá