/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: namminh21 https://public.slidesharecdn.com/v2/images/profile-picture.png S畛�ng ��董n gi畉�n, Y棚u th畉�t l嘆ng, Quan t但m s但u s畉�c, N坦i l畛�i t畛� t畉� v�� gi畛� L嘆ng tin ��畛� nh狸n h動畛�ng l棚n cao ho畉�c h動畛�ng t畛�i ph鱈a tr動畛�c. ��坦 l�� c但u tr畉� l畛�i cho m畛�i v畉�n ��畛�.