TY  - BOOK
AU  - De Rosas,Pitsberg B.
TI  - Workteks sa araling panlipunan IV: ekonimiks 
SN  - 9789716994377
U1  - 330 
PY  - 2008///
CY  - Manila
PB  - Innovative Educational Materials, Inc.
KW  - Economics
ER  -