Martin, William J., author
Aslib Gower, 1995
Buku Teks
Castells, Manuel, author
Blackwell, 1998
Buku Teks
Castells, Manuel, author
Blackwell, 1997
Buku Teks
Castells, Manuel, author
Blackwell, 2000
Buku Teks
Webster, Frank, author
Routledge, 1995
Buku Teks