TY  - BOOK
AU  - Nor Azizah Mohammad Amin
TI  - Principles of economics : workbook 
SN  - 983320547X 
U1  - 330 PRI 2005 
PY  - 2005///
CY  - Petaling Jaya
PB  - Prentice Hall
KW  - Economics
KW  - Problems, exercises, etc
ER  -