/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: chumi7773 https://cdn.slidesharecdn.com/profile-photo-chumi7773-48x48.jpg?cb=1523586076 "cứ Ä‘i rùi sẽ đến cứ gõ rùi cá»­a sẽ mở"