Gaya APA
Writing Academic English. (2006).
New York:
Pearson Education, Inc.
Gaya Chicago
Writing Academic English.
Ed.5.
New York:
Pearson Education, Inc,
2006.
.
Gaya MLA
Writing Academic English.
Ed.5.
New York:
Pearson Education, Inc,
2006.
.
Gaya Turabian
Writing Academic English.
New York:
Pearson Education, Inc,
2006.
.