Gaya APA
Toh, C.
(2007).
A-Level Solutions-Mathematics-Edition 2.0
.
SINGAPORE:
Step-by-Step Managements Pte.Ltd.
Gaya MLA
Toh, CS.
"A-Level Solutions-Mathematics-Edition 2.0".
SINGAPORE:
Step-by-Step Managements Pte.Ltd,
2007.
Text.