Cohen, Felix S., author
Cornell University Press, 1959
Buku Teks
Tucker, Edwin W.
Irwin, 1992
Buku Teks
Guido, Ginny Wacker, author
Prentice-Hall, 2006
Buku Teks
Brooks, Elizabert C, author
Jones & Bartlett Learning, 2013
Buku Teks
[edited by] Diana M. Bailey, Sharan L. Schwartzberg
F.A. Davis , 1995
Buku Teks