TY  - BOOK
TI  - PSA (Problem Solving assessment ): Based on the CBSE guidelines,Sample problems and examination format IXth
U1  - 808.0420711 21st ed.
CY  - New delhi
PB  - Sarswati House Pvt.Ltd
KW  - Question solved paper
N1  - About PSA from CBSE
ER  -