Couch, L. W. (2001). Digital and analog communication systems (6th ed.). Prentice Hall, Pearson Education.
Dyfyniad Arddull ChicagoCouch, Leon W. Digital and Analog Communication Systems. 6th ed. Upper Saddle River, N.J. : Delhi,IN.: Prentice Hall, Pearson Education, 2001.
Dyfyniad MLACouch, Leon W. Digital and Analog Communication Systems. 6th ed. Prentice Hall, Pearson Education, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.