Gaya APA

Pramesthi, I, L. et al (1986). Basic Business English and Comunication . New Jersey: Prentce Hall Englewood Cliifs.

Gaya MLA

Pramesthi, Indriya, Laras. et al. "Basic Business English and Comunication". New Jersey: Prentce Hall Englewood Cliifs, 1986. Text.