Matthew, Neil
Wrox Press, 1999
Buku Referensi
Hsiao, David K., author
Addison-Wesley, 1975
Buku Teks
Stallings, William, author
Pearson Prentice Hall, 2009
Buku Teks
Stallings, William, author
Pearson, 2018
Buku Teks
International Business Machines Corp., 1987
Buku Teks