Neushul, Michael, author
Hamilton, 1974
Buku Teks
Wilson, Carl L., author
Holt, Rinehart and Winston, 1962
Buku Teks
Adams, Preston, author
Addison-Wesley, 1970
Buku Teks
T. Elliot Weier ... [and others]
John Wiley & Sons, 1974
Buku Teks
Laetsch, Watson M., author
Little, Brown, 1979
Buku Teks