Gaya APA

Adhika, G. et al (2012). One Direction : The Unofficial Book (Cet. 2). Jakarta: Penerbit Puspa Populer.

Gaya MLA

Adhika, Gia. et al. "One Direction : The Unofficial Book". Cet. 2 Jakarta: Penerbit Puspa Populer, 2012. Text.