Gaya APA

yeongseon, C., Novianti, E, N. (2017). Why?: computer virus: virus komputer (Cet. 1). Jakarta: PT Elex Media Komputindo.

Gaya MLA

yeongseon, CHO., Novianti, Endah, Nawang. "Why?: computer virus: virus komputer". Cet. 1 Jakarta: PT Elex Media Komputindo, 2017. Text.