TY  - BOOK
AU  - Tiwari, sharad
AU  - Bhargava,Deepak 
AU  - Darshana,Rathore
TI  - Textbook of Information technology IX/ 
SN  - 9789355016904
U1  - 000 
PY  - 2013///
CY  - Noida
PB  - S Chand and company limited
ER  -