| CODE |
| ftp://194.44.214.3/pub/e-books/ |
| CODE |
| http://lab.lpicn.org/pub/books/ |
| CODE |
| http://www.lib.hcmut.edu.vn/tldt/book/dientu/dientu.htm |
| CODE |
| http://vietnamwebsite.net/ebook/ |
| CODE |
| http://www.khvt.com/documents/Giaotrinh.html |
| CODE |
| ftp://dientuftp.com/ |
| CODE |
| http://www.33367.com/ |
| CODE |
| http://www.oebook.com/0-1.htm |
| CODE |
| http://docs.rinet.ru/ |
| CODE |
| http://dut.ud.edu.vn/giaotrinh/index.htm |
| CODE |
| http://kho.tailieuvietnam.net/ |