Gaya APA
Nugroho. (2013).
Nila #1 unggul .
Jakarta:
Penebar Swadaya.
Gaya Chicago
Nugroho.
Nila #1 unggul.
Jakarta:
Penebar Swadaya,
2013.
Text.
Gaya MLA
Nugroho.
Nila #1 unggul.
Jakarta:
Penebar Swadaya,
2013.
Text.
Gaya Turabian
Nugroho.
Nila #1 unggul.
Jakarta:
Penebar Swadaya,
2013.
Print.