Guffey, M. E. (2006). Business communication: Process & product = Komunikasi bisnis: Proses & produk. Buku 2. Salemba Empat.
Chicago Style (17th ed.) CitationGuffey, Mary Ellen. Business Communication: Process & Product = Komunikasi Bisnis: Proses & Produk. Buku 2. Salemba Empat, 2006.
MLA (8th ed.) CitationGuffey, Mary Ellen. Business Communication: Process & Product = Komunikasi Bisnis: Proses & Produk. Buku 2. Salemba Empat, 2006.
Warning: These citations may not always be 100% accurate.