Gaya APA
Guffey, Mary Ellen. (2008).
Business Communication ;Process and Product (6th eD.).
:
South-Western Cengage Learning.
Gaya Chicago
Guffey, Mary Ellen.
Business Communication ;Process and Product.
6th eD.
:
South-Western Cengage Learning,
2008.
Teks.
Gaya MLA
Guffey, Mary Ellen.
Business Communication ;Process and Product.
6th eD.
:
South-Western Cengage Learning,
2008.
Teks.
Gaya Turabian
Guffey, Mary Ellen.
Business Communication ;Process and Product.
6th eD.
:
South-Western Cengage Learning,
2008.
Teks.