Gaya APA
Astuti, Ponny Retno. (2008).
Meredam Bullying... .
Jakarta:
Grasindo.
Gaya Chicago
Astuti, Ponny Retno.
Meredam Bullying....
Jakarta:
Grasindo,
2008.
Text.
Gaya MLA
Astuti, Ponny Retno.
Meredam Bullying....
Jakarta:
Grasindo,
2008.
Text.
Gaya Turabian
Astuti, Ponny Retno.
Meredam Bullying....
Jakarta:
Grasindo,
2008.
Print.