Jones, Bill
British politics today
Manchester University Press, 1990
 Buku Teks
Pye, Keith
British politics: edieas and concepts
Stanley Thornes , 1992
 Buku Teks
Jones, Bill
British politics today
Manchester University Press, 1991
 Buku Teks
Punnett, R.M.
British government and politics
Dartmouth, 1994
 Buku Teks
Jones, Bill
British politics today
Manchester University Press, 1993
 Buku Teks