Gaya APA
Kheong, F, H. et al
(2004).
Maths 4B: Practice book
(
4B SD)
.
Singapore:
Marshall Federal Publication.
Gaya MLA
Kheong, Fong, Ho. et al.
"Maths 4B: Practice book".
4B SD
Singapore:
Marshall Federal Publication,
2004.
.