/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nagaphan https://public.slidesharecdn.com/v2/images/profile-picture.png S畛�ng th畛�c t畉�... Suy ngh挑 ti棚u c畛�c... L��m vi畛�c t鱈ch c畛�c... ��畛� con tim t畛� do trong t畉�m nh狸n c畛�a l箪 tr鱈...