Gaya APA
Silvi,Maria. (2010).
Positif .
Yogyakarta:
JB Publiser.
Gaya Chicago
Silvi,Maria.
Positif.
Yogyakarta:
JB Publiser,
2010.
Fiction.
Gaya MLA
Silvi,Maria.
Positif.
Yogyakarta:
JB Publiser,
2010.
Fiction.
Gaya Turabian
Silvi,Maria.
Positif.
Yogyakarta:
JB Publiser,
2010.
Fiction.