Godfrey, M.G., author
Edward Arnold , 1986
Buku Teks
Rickmers, Albert D., author
McGraw-Hill, 1967
Buku Teks
Wonnacott, Thomas H., 1935-, author
John Wiley & Sons, 1972
Buku Teks
Berenson, Mark L., author
Prentice-Hall, 1989
Buku Teks
Becker, William E., author
Addison-Wesley, 1987
Buku Teks