Goetsch, David L., author
Pearson/Prentice Hall, 2004
Buku Teks
Goetsch, David L., author
Pearson-Prentice Hall, 2004
Buku Teks
Kadish, Jules E., author
Artech House , 1993
Buku Teks
Cobb, Anthony T., author
Sage, 2006
Buku Teks
Wheelan, Susan A.
Sage, 1999
Buku Teks