Salvatore, Dominick, author
McGraw-Hill, 1993
Buku Teks
Douglas, Evan J., 1946-, author
Prentice-Hall, 1992
Buku Teks
Dean, Joel
Prentice-Hall, 1951
Buku Teks
Boyes, William, author
South Western Cengage Learning, 2012
Buku Teks
Salvatore, Dominick, author
McGraw-Hill, 1996
Buku Teks