Carlson, Reinhold A., author
R.S. Means, 1991
Buku Teks
Hatten, Timothy S., author
Prentice-Hall, 1997
Buku Referensi
Rosenfeld, Louis, author
O`Reilly Media, 2015
Buku Teks
Greenstein, Marilyn, author
Irwin McGraw-Hill, 2000
Buku Teks
Perry, William E., author
John Wiley & Sons, 1981
Buku Teks