Elahi, Ata
Network communications technology
Delmar Thomson Learning, 2001
 Buku Teks SO
Stallings, William
Data and computer communications
Prentice-Hall, 2004
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Forouzan, Behrouz A.
Data communications and networking
McGraw-Hill, 2002
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Black, Uyless D.
Data communications and distributed networks
A Reston Book, 1987
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Sherman, Kenneth
Data communications: a users guide
Reston Publishing company, 1981
 Buku Teks SO