TY  - BOOK
AU  - Walia, Ekta 
TI  - Operating system concepts
SN  - 9789380016658
U1  - 005.43 WAL 
PY  - 2022///
CY  - New Delhi
PB  - Khanna book publishing (p) Ltd., 
KW  - Computer programming
KW  - Operating systems
ER  -