Reynolds, Lloyd G., author
Prentice-Hall, 1978
Buku Teks
Jurgen Georg Backhaus, editor
[Springer, Springer], 2012
eBooks
Freeman, Richard B.
Prentice-Hall, 1972
Buku Teks
Bellante, Don, author
McGraw - Hill , 1983
Buku Teks
Ehrenberg, Ronald G., author
Pearsons Addison-Wesley , 2009
Buku Teks