Keir, David Lindsay
The Constitutional history of modern Britain 1485-1937
Adam and Charles Black, 1946
 Buku Teks SO
Laskin, Bora
Canadian constitutional law : cases, text, and notes on distribution of legislative power
The Carswell Company, 1960
 Buku Teks SO
Rossiter, Clinton, 1917-1970
Constitutional dictatorship crisis government in the modern democracies
A Harbinger Book, 1963
 Buku Teks
Keir, David Lindsay
The Constitutional history of modern Britain since 1485
Adam and Charles Black, 1961
 Buku Teks SO
Marcham, Frederick George
A constitutional history of modern England, 1485 to the present
Harper & Brothers, 1960
 Buku Teks SO