Spitzbart, Abraham, author
Addison-Wesley, 1964
Buku Teks
Gager, William A., author
Macmillan, 1968
Buku Teks
Barnett, Raymond A., author
McGraw-Hill, 2001
Buku Teks
Barnett, Raymond A., author
McGraw-Hill, 2001
Buku Teks
Beckenbach, Edwin F., author
Wadsworth, 1968
Buku Teks