Essential System Administration
Æleen Frisch
Mastering Linux Security and Hardening
Donald Tevault
Mastering Python Networking
Eric Chou
Kali Linux 2018
Shiva V. N Parasram & Alex Samm & Lee Allen
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain