Lary, Diana
Cambridge University Press, 2007
Buku Teks
The Goverment Information Office, 2009
Buku Referensi
Chesneaux, Jean
Pantheon Books, 1979
Buku Teks
The Government Information Office, 1999
Buku Referensi
The Government Informaation Office , 1998
Buku Referensi