Gaya APA
Hapka, Catherine. (2010).
Sahabat Sejati? .
:
Elex Media Komputindo.
Gaya Chicago
Hapka, Catherine.
Sahabat Sejati?.
:
Elex Media Komputindo,
2010.
Fiction.
Gaya MLA
Hapka, Catherine.
Sahabat Sejati?.
:
Elex Media Komputindo,
2010.
Fiction.
Gaya Turabian
Hapka, Catherine.
Sahabat Sejati?.
:
Elex Media Komputindo,
2010.
Fiction.