Mac OS X killer tips 由 Kelby, Scott

Sams teach yourself Red Hat Linux 9 in 24 hours 由 Hsiao, Aron

Guide to Linux networking and security 由 Wells, Nicholas

Just enough Unix 由 Andersen, Paul K.

Red hat linux administration a beginner's guide 由 Turner, Michael

Aries Server+ certified computer technician

A+ technician's on-the-job guide to Windows XP 由 Simmons, Curt 1968-

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The business and economics of linux and open source 由 Fink, Martin

Developing WMI solutions a guide to Windows management instrumentation 由 Tunstall, Craig

Linux administration a beginner’s guide 由 Graham, Steven