TY  - BOOK
AU  - ONG Bee Hoo
TI  - Effective Guide to 'O' Level : : Additional Mathematics 
SN  - 981-235-795-5
U1  - 510. 
PY  - 2007///
CY  - Singapore
PB  - Pearson Education South Asia 
KW  - 0
KW  - Grade 7-9
ER  -