TY  - BOOK
AU  - Sheikh, Ahmed F.
TI  - CompTIA security+ certification study guide: network security essentials
SN  - 9781484267233
U1  - 005.8 SHE 
PY  - 2021///
CY  - New York
PB  - Apress
KW  - Computer security
KW  - Information security model
KW  - Wireless network security
ER  -