TY  - BOOK
AU  - Thong Benjamin
TI  - GCE A level economics:  The Complete Guide
U1  - X, Q9 
PY  - 2019///
CY  - Chennai
PB  - WS Education         
KW  -  IDOS
KW  -  IEOS
KW  -  PPC
KW  -  Production possibility curve
KW  - Business Economics
ER  -