TY  - BOOK
AU  - Abdullah, Norbani
TI  - O-level chemistry: learning through diagrams
SN  - 9789812741547
AV  - QD 31 CH51 2012 
PY  - 2012///
CY  - Singapore
PB  - SAP Group Ptc. Ltd. 
KW  - Chemistry -- study and teaching (secondary) -- Singapore
KW  - Chemistry -- Singapore - textbook
ER  -