I require following books. If possible, please attach the book or link for following books.

1. James L. Peterson & A. Silberschatz: Operating System Concepts; 2nd Edn., Addison Wesley, World Student Edition
2. Dietel H.M.: An Introduction To Operating Systems; Addison Wesley, World Student Edition
3. Systems Programming & Operating Systems, 2nd Edn., D.M. Dhamdhere Tata Mc Graw Hill
4.. Operating System : Achyut Godbole
5. Operating System : Galvin
6. Michael Budnick L.,Et Al., LAN Operating Systems; New Riders Publishing,Carmel, Indiana.