Gaya APA
Luan, K, S.
(2010).
Science 3A: Activiy Book
(
3A SD)
.
Singapore:
Marshall Cavendish, 2003.
Gaya MLA
Luan, Koh, Siew.
"Science 3A: Activiy Book".
3A SD
Singapore:
Marshall Cavendish, 2003,
2010.
.