/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: thivu73 https://public.slidesharecdn.com/v2/images/profile-picture.png Sinh viên Kỹ thuật hệ thống công nghiệp. Industrial Systems Engineering's student. Email: levanhau2806@gmail.com