Freed, L., & Derfler JR, F. J. (1996). Panduan komunikasi modem. Elex Media Komputindo.
Chicago Style (17th ed.) CitationFreed, Les, and Frank J. Derfler JR. Panduan Komunikasi Modem. Elex Media Komputindo, 1996.
MLA (8th ed.) CitationFreed, Les, and Frank J. Derfler JR. Panduan Komunikasi Modem. Elex Media Komputindo, 1996.
Warning: These citations may not always be 100% accurate.