White, Paul A., author
Dickenson, 1968
Buku Teks
Paul, Richard S., author
Reston Publishing, 1983
Buku Teks
Spitzbart, Abraham, author
Addison-Wesley, 1964
Buku Teks
Beckenbach, Edwin F., author
Wadsworth, 1966
Buku Teks
Beckenbach, Edwin F., author
Wadsworth, 1968
Buku Teks