Parker, Steve
How things work
Parragon, 2000
 Buku Referensi
Fahnestock, James D.
Computers and how they work
Ziff Publishing, 1959
 Buku Teks SO
Westcott, Charles G.
Tape recorders; how they work
Howard W. Sams, 1964
 Buku Teks
Dobson, Ann
How to Communicate at work
grolier international, 1999
 Buku Teks
Hospitals : what they are and how they work
Donald J. Griffin, editor
Jones & Bartlett Learning, 2011
 Buku Teks