Hacking VoIP: Protocols, Attacks, and Countermeasures
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The History of the Incas
Pedro Sarmiento de Gamboa & Brian S. Bauer & Vania Smith
Jenkins Essentials
Mitesh Soni
Mastering Apache Maven 3
Prabath Siriwardena
Advanced Network Programming
Bogdan Ciubotaru , Gabriel-Miro Muntean