TY  - GEN
AU  - Tiwari, Sharad
AU  - Bhargava,Deepak
AU  - Rathore, Darshna
TI  - Computer Applications for class-9
SN  - 9789352833856
U1  - E/O 004. 23 ed.
PY  - 2018///
CY  - New Delhi
PB  - S Chand school Books
KW  - System design
KW  - Computer Science
ER  -