Proakis, J. G., & Salehi, M. (2005). Fundamentals of communication systems. Pearson/Prentice Hall.

Proakis, John G., and Masoud Salehi. Fundamentals of Communication Systems. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2005.

Proakis, John G., and Masoud Salehi. Fundamentals of Communication Systems. Pearson/Prentice Hall, 2005.