/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: vuduongdoan https://public.slidesharecdn.com/v2/images/profile-picture.png T担i ch畉�ng bao gi畛� qu棚n ��動畛�c c叩i ng��y m�� t担i tr畉�i qua th畛�i sinh vi棚n t担i h畉�n ng動畛�i l��m t担i ��au kh畛�