Penggayaan APA

Heo, Soon Bong. (). Why ? Happy Science 6 . Jakarta: PT.Elex.Media.Komp.

Chicago Style

Heo, Soon Bong. Why ? Happy Science 6. Jakarta: PT.Elex.Media.Komp, . Text.

MLA Style

Heo, Soon Bong. Why ? Happy Science 6. Jakarta: PT.Elex.Media.Komp, . Text.

Turabian Style

Heo, Soon Bong. Why ? Happy Science 6. Jakarta: PT.Elex.Media.Komp, . Print.