Penggayaan APA
GUFFEY, Mary Ellen. (2003).
Business Communication (4th ed.).
Ohio:
Thomson.
Chicago Style
GUFFEY, Mary Ellen.
Business Communication.
4th ed.
Ohio:
Thomson,
2003.
Buku.
MLA Style
GUFFEY, Mary Ellen.
Business Communication.
4th ed.
Ohio:
Thomson,
2003.
Buku.
Turabian Style
GUFFEY, Mary Ellen.
Business Communication.
4th ed.
Ohio:
Thomson,
2003.
Buku.