TY  - BOOK
AU  - Orines,Fernando B.
AU  - Mercado,Jesus
AU  - Esparrago,Mirla
AU  - Manalo,Catalina
AU  - Reyes,Nestor Jr
TI  - Next century mathematics I0 / 
SN  - 99789710637256
U1  - 510 
PY  - 2015///
CY  - Quezon  City
PB  - Phoenix Publishing House,  Inc., 
KW  - Mental math.
KW  - written math.
KW  - Math challenge.
N1  - includes glossary.
ER  -