APA Style

Cendika, D. et al (2009). Cegah bullying= stop bullying (Cet. 1). Jakarta: PT Bumi Aksara Group.

MLA Style

Cendika, Dewi. et al. "Cegah bullying= stop bullying". Cet. 1 Jakarta: PT Bumi Aksara Group, 2009. Text.