TY  - BOOK
AU  - "GOPI KRISHNAN","CHRIS BUCKTON","ELSPETH GRAHAM","EDITORIAL BOARD","YIP FONG LING","SEEMA ZAHID","J.S.TAN"
TI  - MATHEMATICS CHALLENGING PROBLEMS 6
SN  - 9813011254
U1  - F823 
PY  - 2000///
ER  -