TY  - BOOK
AU  - Nuyda, Maria Socorro S.
AU  - Aguilar, Jerry A.
AU  - Dela Cruz, Therese A. R.
TI  - Math: : models for understanding
SN  - 9789710508341 (gr. 1)
U1  - 372.7 
PY  - 2013///]
CY  - Malabon City
PB  - Jimczyville Publications
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - "K-12."--Cover; Includes bibliographical references; Grade 1; Grade 2
ER  -