Gaya APA
Lougheed, Lin. (2003).
Business Correspondence (2 nd ed).
New York:
LONGMAN.
Gaya Chicago
Lougheed, Lin.
Business Correspondence.
2 nd ed
New York:
LONGMAN,
2003.
.
Gaya MLA
Lougheed, Lin.
Business Correspondence.
2 nd ed
New York:
LONGMAN,
2003.
.
Gaya Turabian
Lougheed, Lin.
Business Correspondence.
2 nd ed
New York:
LONGMAN,
2003.
.