Gaya APA
The Doomsday Key: A Novel of 2012
.
(2009).
Depok:
Imania (Pustaka Iman).
Gaya MLA
The Doomsday Key: A Novel of 2012
.
Cet.1.
Depok:
Imania (Pustaka Iman),
2009.
Art Original.