Fay, Robin M., author
Facet, 2012
Buku Teks
Hitzler, Pascal, author
CRC Press, 2010
Buku Teks
Ed Downey and Matt Jones, editors
IGI Global, 2012
Buku Teks
edited by Thomas Eiter, Thomas Krennwallner
Springer-Verlag, 2012
eBooks
Roberto De Virgilio, editor
Springer-Verlag, 2012
eBooks