Gaya APA

Sapre, R, P, S, S, D. (2007). Communication Systems Analog And Digital 2nd Edition By RP Singh (edisi kedua). USA: mc graw hill.

Gaya MLA

Sapre, R, P, Singh,, S, D. "Communication Systems Analog And Digital 2nd Edition By RP Singh". edisi kedua USA: mc graw hill, 2007. Monograf.