Gaya APA
Class, codes and contol. (2003).
New York:
Rouledge.
Gaya Chicago
Class, codes and contol.
.
New York:
Rouledge,
2003.
.
Gaya MLA
Class, codes and contol.
.
New York:
Rouledge,
2003.
.
Gaya Turabian
Class, codes and contol.
New York:
Rouledge,
2003.
.