Operating Systems, by H. Schulzrinne, Columbia University.
Operating Systems, by Iftode, University of Maryland, College Park.
Operating Systems, by Keleher, University of Maryland, College Park.
Operating Systems, by Hollingsworth, University of Maryland, College Park.
Operating Systems and Systems Programming, by A. Joseph, University of California, Berkeley.
Operating Systems and Systems Programming, Stanford University.
Introduction to Operating Systems, by Emin Sirer, Cornell University.
Operating Systems, Harvard University.