TY  - BOOK
AU  - Songco,Evelyn A.
AU  - et.al.,
TI  - Teaching Strategies In Social Science 
SN  - 9715740405
U1  - HS Cir 372.83 T22 2002 
PY  - 2002///
CY  - Quezon City
PB  - Katha Publishing Co., Inc.
ER  -