Stallings, William
Data and computer communications
Macmillan, 1988
 Buku Teks
Skees, William D.
Computer software for data communications
Lifetime learning , 1981
 Buku Teks
Data communications and computer networks
edited by S. Ramani
North Holland, 1981
 Buku Teks
Stalling, William
Data and computer communications
Maxwell Macmillan International, 1991
 Buku Teks
Stallings, William
Data and computer communications
Prentice-Hall, 2004
 Buku Teks