Dicker, Georges, author
Oxford University Press , 2004
Buku Teks
Llewelyn, John
Routledge, 1999
Buku Teks
Beck, Lewis White
The University of Chicago Press, 1960
Buku Teks
Montesquieu, Charles de Secondat,1689-1755, author
Hafner Press, 1949
Buku Teks
Collier, John G. (John Greenwood), author
Cambridge University Pers, 1994
Buku Teks