http://groups.google.com/group/caohoc0608/browse_thread/thread/f987e0e216d73a77?pli=1 duong dan download toan maple cua bo mon phep tinh vi phan ham nmot bien
http://saomaiquan.org va http://saomaicenter.org de download JAWS.930 dang cho nguoi khiem thi
phan mem danh cho ngoi mu: http://www.saomaicenter.org/saomaisoft