ºÝºÝߣshows by User: permguza / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: permguza / ºÝºÝߣShare feed for ºÝºÝߣshows by User: permguza https://cdn.slidesharecdn.com/profile-photo-permguza-48x48.jpg?cb=1523513126 ึϸµ