/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: phungduydung https://public.slidesharecdn.com/v2/images/profile-picture.png S畛�ng chi畉�n ��畉�u h畛�c t畉�p theo g動董ng B叩c H畛� v挑 ��畉�i !!!