Day, Richard J.F., author
Pluto Press, 2005
Buku Teks
Jürgen R. Grote and Claudius Wagemann, editors
Routledge, Taylor & Francis Group, 2019
Buku Teks
Castells, Manuel, author
Polity Press, 2012
Buku Teks
Athina A. Lazakidou, editor
[Springer, ], 2012
eBooks
Duncan, Otis Dudley, author
John Wiley & Sons, 1956
Buku Teks