Eldridge, Richard
Cambridge, 2003
Buku Teks
Davies, Stephen, 1950-
Wiley Blackwell, 2016
Buku Teks
Hales, Steven D.
Wiley Balckwell, 2013
Buku Teks
Maritain, Jacques, 1882-1973
Rowman & Littlefield Publishers, 2005
Buku Teks
Randall, John Herman
Barnes & Noble, 1957
Buku Teks