Schonberger, Richard John, author
Business Publications , 1981
Buku Teks
Compton, W. Dale, author
Prentice-Hall, 1997
Buku Teks
Mather, Hal, author
Prentice-Hall, 1988
Buku Teks
Moore, Franklin G., author
Irwin, 1961
Buku Teks
Lindbeck, John R., author
Prentice-Hall, 1990
Buku Teks