Gaya APA
Underground. (2011).
Jakarta:
Kits Publishing.
Gaya Chicago
Underground.
1.
Jakarta:
Kits Publishing,
2011.
Non Fiksi.
Gaya MLA
Underground.
1.
Jakarta:
Kits Publishing,
2011.
Non Fiksi.
Gaya Turabian
Underground.
Jakarta:
Kits Publishing,
2011.
Non Fiksi.