Rao, P. R. (2018). Digital Communication. McGrawhill.
Chicago-čujuhus (17. p.)Rao, P R. Digital Communication. Chennai: McGrawhill, 2018.
MLA-čujuhus (9. p.)Rao, P R. Digital Communication. McGrawhill, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.