General

• Quinn, Jack. Digital Data Communication, Englewood Cliffs, NJ: Prentice-Hall, 1995, ISBN 0-02- 397240-8

Encoding and Modulation

• Howald, Robert. "Modulation Basics for Digital Communications, Part 1," Communications Systems Design, vol. 2, no. 7, (July 1996) p.34
• Howald, Robert. "Modulation Basics for Digital Communications, Part II," Communications Systems Design, vol. 2, no. 8, (August 1996) p.32
• Kano, Nadine and Asmus Freytag. " The international character set conundrum: ANSI, Unicode, and Microsoft Windows," Microsoft Systems Journal, vol. 9, no. 11, (November 1994) p. 55

Serial Transmission

• Gofton, Peter W. Mastering Serial Communications, 2nd ed., Alameda, CA: Sybex, 1994, ISBN 0-7821- 1202-1
• Gustavson, David and Qiang Li. The Scalable Coherent Interface (SCI). IEEE Communications,34;8 (August 1996), 52.

Modem Communications

• Freed, Les and Frank Derfler, Jr. PC Magazine Guide to Modem Communications, Emeryville, CA: Ziff- Davis Press, 1992, ISBN 1-56276-037-8