Garrett, Thomas M., author
Prentice-Hall, 2001
Buku Teks
edited by Michael Parker
Routledge , 1999
Buku Teks
Smith, George P., author
Taylor and Francis, 1996
Buku Teks
by Barry R. Furrow ... [and others]
Thomson/West, 2008
Buku Teks
edited by Eileen E. Morrison, Beth Furlong
Jones & Bartlett Learning, 2014
Buku Teks