White, Ron, author
How computers work
Ziff-Davis Press, 1993
 Buku Teks
Dobson, Ann
How to Communicate at work
grolier international, 1999
 Buku Teks
How Networks Work
 Buku Teks
Hospitals : what they are and how they work
Donald J. Griffin, editor
Jones & Bartlett Learning, 2011
 Buku Teks
Basic machines and how they work
prepared by Bureau of Naval Personnel
Dover Publications, 1997
 Buku Teks
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