Markland, Robert E., author
John Wiley & Sons, 1987
Buku Teks
Levin, Richard I., author
McGraw-Hill, 1986
Buku Teks
Levin, Richard I., author
New York, NY, McGraw-Hill
Buku Teks
Wagner, Harvey M., author
Prentice-Hall, 1969
Buku Teks
Levin, Richard I., author
McGraw-Hill International Book Company, 1982
Buku Teks