Finnis, John
Oxford Univesity Press, 2011
Buku Teks
Maritain, Facques
Charles Scribner's Son's, 1943
Buku Teks
Dentreves, A.P.
Hutchinson`s University Library, 1951
Buku Teks
Anderson, Owen J.
Cambridge University Press, 2012
Buku Teks
Geddes & Grsset, 1997
Buku Teks