/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: biphan9 https://public.slidesharecdn.com/v2/images/profile-picture.png Ngo��i gia ��狸nh, t畉�t c畉� m畛�i th畛� ��畛�u l�� gi畉�, ch畛� c坦 ti畛�n l�� th畉�t