Second Foundation
Isaac Asimov
Foundation (3)
Mamita Yunai
Carlos Luis Fallas
Operating System Concepts 8th Edition
Abraham Silberschatz & Peter B. Galvin & Greg Gagne
Operating System Concepts (2)
Operating System Concepts, 9th Edition
Abraham Silberschatz
Operating System Concepts (1)
Puppet 3. 0 Beginner's Guide
John Arundel