GNU Accounting Utilities, Noel Cragg: www.gnu.org/directory/System_administration/Monitoring/acct.html
Linux Documentation Project Kernel-HOWTO, Brian Ward, Al Dev (Alavoor Vasudevan): www.tldp.org/HOWTO/Kernel-HOWTO.html
Linux System Security by Scott Mann and Ellen L. Mitchell, Prentice Hall PTR, 2002.
The Process Accounting Mini-HOWTO, Albert M. C. Tam: www.tldp.org/HOWTO/mini/Process-Accounting/index.html
Other Process Accounting Utilities: www.ibiblio.org/pub/Linux/system/admin/accounts