Blanchard, Robert E., author
John Wiley & Sons, 1975
Buku Teks
Adams, Thomas F., author
Prentice-Hall, 1980
Buku Teks
Weston, Paul B., author
Prentice-Hall, 1977
Buku Teks
Weston, Paul B., author
Prentoce-Hall, 1981
Buku Teks
Feld, barry c., author
Thomson/West, 2009
Buku Teks