TY  - BOOK
AU  - Ang Tok Woon
AU  - Cheah Tat Huat
AU  - Khor Gark Kim
AU  - Leong Wei Ching
AU  - Tan Beng Theam
TI  - A course for O-level pure mahtematics: : additional mathematics/ 
SN  - 9780195884432
PY  - 2003///
CY  - Singapore: 
PB  - Federal Publication, 
KW  - Calculas
KW  - Mathematics
ER  -