Gaya APA
Business communications : principles and methods. (1984).
California:
Kent Publishing Company.
Gaya Chicago
Business communications : principles and methods.
.
California:
Kent Publishing Company,
1984.
Text.
Gaya MLA
Business communications : principles and methods.
.
California:
Kent Publishing Company,
1984.
Text.
Gaya Turabian
Business communications : principles and methods.
California:
Kent Publishing Company,
1984.
Print.