McIlwain, Charles Howard
Russell and Russell, 1965
Buku Teks
edited by Edward McChesney Sait, Michael Beresford Foster, W.T. Jones
1252, 1949
Buku Teks
Locke, John
Kanisius, 2002
Buku Teks
E.P.Dutton, 1954
Buku Teks
Hobbes, Thomas
Broadview Literary Texts , 2002
Buku Teks