Tomlin, Dana C., author
Prentice-Hall, 1990
Buku Teks
Johnson, Lynn E., author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
DeMers, Michael N.
John Wiley & Sons, 1997
Buku Teks
penyunting, Aryo Hanggono, Syamsul B. Agus
BPP Teknologi, 1999
Buku Referensi
O`Brein, James M., author
[publisher not identified], [date of publication not identified]
Artikel Jurnal