Roden, Martin S.
Analog and digital communication systems
Prentice-Hall, 1996
 Buku Teks
The future of digital subscriber line technology: business drivers, strategies and markets: research report
International Engineering Consortium
Professional Education International, 1999
 eBooks
Derfler, Frank J.
Microcomputer data communication systems
Prentice-Hall, 1982
 Buku Teks
Purser, Michael
Data communications for programmers
Addison-Wesley, 1986
 Buku Teks
Cohen, Leon W.
Digital and analog communication systems
Prentice Hall International, 1997
 Buku Teks