edited by Jon Greenberg
Everyday Learning, 2001
Buku Teks
edited by Kenneth M. Yamada
John Wiley & Sons, 1983
Buku Teks
Weaver, Robert F., author
McGraw-Hill, 1999
Buku Teks
Freifelder, David, author
Jones and Bartlett, 1986
Buku Teks
Choinski, John S.
Wm.C. Brown Pub., 1992
Buku Teks