TY  - BOOK
AU  - Jensen, Paz A. Lacsamana
TI  - Speed math: : multiplication & addition
SN  - 9712715353
U1  - 510 
PY  - 2004///
CY  - Pasig City
PB  - Anvil Publishing
KW  - Mathematics
KW  - Study and teaching (Secondary)
ER  -