/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: carmencecere https://cdn.slidesharecdn.com/profile-photo-carmencecere-48x48.jpg?cb=1523501710 If you think that education is expensive, try ignorance — Derek Bok ?!?