/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ozanatalay319 https://cdn.slidesharecdn.com/profile-photo-ozanatalay319-48x48.jpg?cb=1601886712 Mediha Hayri Çelik Fen Lisesi