Great dialogues of Plato
translated by W.H.D. Rouse
Mentor Books , 1956
 Buku Teks
Plato's the Republic / translated into English by B. Jowett.
The Modern Library, tt
 Buku Teks
Machiavelli, Niccolo
The discourses of Niccolo Machiavelli / translated from the italian with an introduction and notes by Leslie J. Walker
Routledge & Kegan Paul, 1950
 Buku Teks
McIlwain, Charles Howard
The political works of James I. With an introduction
Russell and Russell, 1965
 Buku Teks
Locke, John
Kuasa itu milik rakyat: esai mengenai asal mula sesungguhnya, ruang lingkup, dan maksud tujuan pemerintahan sipil
Kanisius, 2002
 Buku Teks SO