TY  - BOOK
AU  - Songco, Evelyn A. et. al. 
TI  - Teaching strategies in the social sciences for elementary grades
SN  - 9715740405
AV  - LB 1584 .So698 2002
PY  - 2002///
CY  - Quezon City : 
PB  - Katha Publishing, 
N1  - EDU
ER  -