Proakis, J. G., & Salehi, M. (2008). Digital communications (5th ed.). McGraw-Hill.

Proakis, John G., and Masoud Salehi. Digital Communications. 5th ed. Boston: McGraw-Hill, 2008.

Proakis, John G., and Masoud Salehi. Digital Communications. 5th ed. McGraw-Hill, 2008.