Hacking VoIP: Protocols, Attacks, and Countermeasures
Himanshu Dwivedi
A Brief History of Time
Stephen Hawking
Developing RESTful Services With JAX-RS 2.0, WebSockets, and ...
Masoud Kalali & Bhakti Mehta
Effective Perl Programming: Ways to Write Better, More Idiomatic ...
Joseph N. Hall & Joshua A. McAdams & Brian D Foy
Networking for Systems Administrators (IT Mastery) (Volume 5)
Michael W Lucas