TY  - BOOK
AU  - Oracion,Vivencio III
AU  - Magno-Pavia,MaMargarita T.
TI  - Math challenge: volume 3 
SN  - 971-48-0155-9
U1  - Fi./Ref. 510 Or1 1997 
PY  - 1997///
CY  - Makati City
PB  - Diwa Scholastic Press Inc.
KW  - Mathematics - Problems, exercises, etc
ER  -