1. Alencar, M. S. (1999). Principles of communications. João Pessoa, Brazil: University Publishers, UFPB. (in Portuguese).
2. Alencar, M. S. (2009). Digital television systems. Cambridge, UK: Cambridge University Press. ISBN-10: 0521896029, ISBN-13: 9780521896023.
3. Gagliardi, R. (1978). Introduction to communication engineering. New York: Wiley.
4. Haykin, S. (1988). Digital communications. New York: Wiley.
5. Lathi, B. P. (1989). Modern digital and analog communication systems. Philadelphia, USA: Holt, Rinehart and Winston Inc.