TY  - BOOK
AU  - Stallings, William
TI  - Network security essentials : applications and standards 6th ed 
SN  - 9789352866601
PY  - 2019///
CY  - Noida
PB  - Pearson
KW  - ENGINEERING
KW  - Computer Science
KW  - Network security
N1  - UG
ER  -