APA Style
Koh, A.
(2013).
'O' Level Chemistry: Structured questions
(
cet. 1)
.
Singapore:
Marshall Cavendish.
MLA Style
Koh, Alaric.
"'O' Level Chemistry: Structured questions".
cet. 1
Singapore:
Marshall Cavendish,
2013.
Buku SMA Athalia.