/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nguyenngocson171 https://cdn.slidesharecdn.com/profile-photo-nguyenngocson171-48x48.jpg?cb=1523426824 gioi thieu doi chut ve ban than: ban than ko co gi de gioi thieu