Gaya APA
GUFFEY,Mary Ellen, Bertha. (2008).
Essentials of business communication Asian edition .
Australia:
Thomson.
Gaya Chicago
GUFFEY,Mary Ellen, Bertha.
Essentials of business communication Asian edition.
Australia:
Thomson,
2008.
Monograf.
Gaya MLA
GUFFEY,Mary Ellen, Bertha.
Essentials of business communication Asian edition.
Australia:
Thomson,
2008.
Monograf.
Gaya Turabian
GUFFEY,Mary Ellen, Bertha.
Essentials of business communication Asian edition.
Australia:
Thomson,
2008.
Monograf.