/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: Fernando0007 https://cdn.slidesharecdn.com/profile-photo-Fernando0007-48x48.jpg?cb=1522869332 El ser humano nace para cooperar en grupo: Fernando Ruiz (1962-). http://www.fernandoruizortuno.blogspot.com/