Kelley, Donald R.
The Human measure: social thought in the western legal tradition
Harvard University Press, 1990
 Buku Teks
Taylor, A.E. (Alfred Edward), 1869-1945
Socrates : the man and his thought
Doubleday, 1952
 Buku Teks
Weber, Eugen
Western tradition; from the renaissance to the atomic age.
Boston: D.C.Heath and Company, (1959).
 Buku Teks
Weber, Eugen
The Western tradition
D.C. Heath, 1959
 Buku Teks
Weber, Engen
western tradition: from the enlightment to the otomic age / Engen Weber
D. C. Heath, 1959
 Buku Teks