Bloomenthal, Harold S., author
Little, Brown, 1977
Buku Teks
Ratner, David L., author
West Publishing, 1996
Buku Teks
Prime, John H., author
Prentice-Hall, 1958
Buku Teks
Graham, Benjamin, 1894-1976, author
McGraw-Hill, 1962
Buku Teks
Cohen, Jerome B., author
Richard D. Irwin, 1973
Buku Teks