際際滷shows by User: nhunghong3133 / http://www.slideshare.net/images/logo.gif 際際滷shows by User: nhunghong3133 / 際際滷Share feed for 際際滷shows by User: nhunghong3133 https://cdn.slidesharecdn.com/profile-photo-nhunghong3133-48x48.jpg?cb=1523350587 hanoi open university