Gaya APA

KIM, Nam-Gil, IRENE Christine, SUDIYONO, Bambang, KIM, Gi-Myung, KANG, Jin-Ho. (2010). Why? Happy Science 4 . Jakarta: Elex Media Komputindo.

Gaya Chicago

KIM, Nam-Gil, IRENE Christine, SUDIYONO, Bambang, KIM, Gi-Myung, KANG, Jin-Ho. Why? Happy Science 4. Jakarta: Elex Media Komputindo, 2010. Text.

Gaya MLA

KIM, Nam-Gil, IRENE Christine, SUDIYONO, Bambang, KIM, Gi-Myung, KANG, Jin-Ho. Why? Happy Science 4. Jakarta: Elex Media Komputindo, 2010. Text.

Gaya Turabian

KIM, Nam-Gil, IRENE Christine, SUDIYONO, Bambang, KIM, Gi-Myung, KANG, Jin-Ho. Why? Happy Science 4. Jakarta: Elex Media Komputindo, 2010. Print.