Gaya APA
Principles and Techniques. (2004).
:
McGraw-Hill.
Gaya Chicago
Principles and Techniques.
.
:
McGraw-Hill,
2004.
Text.
Gaya MLA
Principles and Techniques.
.
:
McGraw-Hill,
2004.
Text.
Gaya Turabian
Principles and Techniques.
:
McGraw-Hill,
2004.
Print.