APA Style
Heo, S, B.
(2010).
Why?Happy science 6
(
Jil.6)
.
Jakarta:
PT Elex Media Komputindo.
MLA Style
Heo, Soon, Bong.
"Why?Happy science 6".
Jil.6
Jakarta:
PT Elex Media Komputindo,
2010.
Buku SMP Athalia.