�ݺ�ߣshows by User: nhatrangchieubuon

�ݺ�ߣshows by User: nhatrangchieubuon / http://www.slideshare.net/images/logo.gif �ݺ�ߣshows by User: nhatrangchieubuon / �ݺ�ߣShare feed for �ݺ�ߣshows by User: nhatrangchieubuon https://cdn.slidesharecdn.com/profile-photo-nhatrangchieubuon-48x48.jpg?cb=1523464585 Giám thị không giải thích gì thêm ^_^