Ludlow, R. P. (1996). Komunikasi effektif. Andi.
Chicago Style (17th ed.) CitationLudlow, Ron Panton. Komunikasi Effektif. Andi, 1996.
MLA (8th ed.) CitationLudlow, Ron Panton. Komunikasi Effektif. Andi, 1996.
Warning: These citations may not always be 100% accurate.