APA Style
Park, S.
(2010).
Why? Happy Math 4
(
Jil.4)
.
Jakarta:
PT Elex Media Komputindo.
MLA Style
Park, Sang-Wook.
"Why? Happy Math 4".
Jil.4
Jakarta:
PT Elex Media Komputindo,
2010.
Buku SMP Athalia.