Gaya APA

Becker, D., Becker, P, B. (1993). Speaking Skills for Business Careers . : McGraw-Hill.New York.

Gaya MLA

Becker, Dennis., Becker, Paula, Borkum. "Speaking Skills for Business Careers". : McGraw-Hill.New York, 1993. Skripsi, Tesis, Disertasi.