Gaya APA

Guffey, M, E. et al (2006). Komunikasi bisnis: proses & produk buku 1 (Business communication: process & product) . : .

Gaya MLA

Guffey, Mary, Ellen. et al. "Komunikasi bisnis: proses & produk buku 1 (Business communication: process & product)". : , 2006. Text.