APA Style

Cho, Young-Seon. (2011). Why?: Sains Masa Depan (Future Science) . Jakarta: PT Elex Media Komputindo.

Chicago Style

Cho, Young-Seon. Why?: Sains Masa Depan (Future Science). Jakarta: PT Elex Media Komputindo, 2011. Text.

MLA Style

Cho, Young-Seon. Why?: Sains Masa Depan (Future Science). Jakarta: PT Elex Media Komputindo, 2011. Text.

Turabian Style

Cho, Young-Seon. Why?: Sains Masa Depan (Future Science). Jakarta: PT Elex Media Komputindo, 2011. Print.