Raed, Jane M., author
Chandos Publishing, 2003
Buku Teks
Sydanmaanlakka, Pentti, author
Capstone Publishing Limited (a Wiley company), 2002
Buku Teks
Leydesdorff, Loet, author
Universal, 2003
Buku Teks
Laudon, Kenneth C., 1944-, author
Prentice-Hall, 2000
Buku Teks
Maier, Ronald, author
Springer, 2007
Buku Teks