edited by Heinz Katschnig, Hugh Freeman and Norman Sartorius
John Wiley & Sons, 2006
Buku Teks SO
Drew, Clifford J.
A Bell & Howell Company, 1986
Buku Teks SO
Gribbin, John
Penguin Books, 1997
Buku Teks SO
Purves, William K.
The Mona GrOup LLC, 1998
Multimedia
Belk, Collen
Pearson/Benjamin Cummings, 2008
Buku Teks