TY  - BOOK
AU  - Estepa, Flordiliza H.
TI  - Problem solving proficiency of grade IV learners in Burgos District, Division of La Union
U1  - TH 510.76 Es8p 2016 
PY  - 2016///
CY  - City of San Fernando, La Union
PB  - [s.n.]
KW  - Problem solving
N1  - Bibliography: pages 219-223
ER  -