TY  - BOOK
AU  - Valsalakumar,E
TI  - Padavukal padanamoolyanirtnaya pravarthanangal:Oorjathanthram standard 10
U1  - 530 Val-P 
PY  - 2005///
CY  - Thiruvananthapuram
PB  - SCERT
KW  - Physics
ER  -