Gaya APA

JEON, J, W., NOVIANTI, E, N. (2011). WHY? EXPERIMENT & OBSERVATION . JAKARTA: ELEX MEDIA KOMPUTINDO.

Gaya MLA

JEON, JAE, WOON., NOVIANTI, ENDAH, NAWANG. "WHY? EXPERIMENT & OBSERVATION". JAKARTA: ELEX MEDIA KOMPUTINDO, 2011. Text.