TY  - BOOK
AU  - Chew, Terry 
TI  - Olympiad Maths Trainer 6 : : 12-13 yrs old / 
SN  - 9789812749093
AV  - QA 43.65  .C529ol 2011
PY  - 2011///.
CY  - Singapore : 
PB  - Singapore Asia Publishers Ltd, 
ER  -