TY  - BOOK
AU  - Ramos,Rhenelee C.
TI  - Development and validation of instructional materials in problem solving for grade 7
U1  - 371.33 
PY  - 2013///
CY  - Morong, Rizal
PB  - [publisher not identified]
KW  - Teaching -- Aids and devices
KW  - Problem solving
ER  -