/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: lekimtoan https://cdn.slidesharecdn.com/profile-photo-lekimtoan-48x48.jpg?cb=1523157267 xấu zai quá hok cóa ai iu..........^^!