edited by John K. Ryan
The Catholic University of America Press, 1963
Buku Teks
Lamarque, Peter
Blackwell Publishing, 2009
Buku Teks
Sober, Elliott
Westview Press, 1993
Buku Teks
Hick, John H., 1922-2012
Prentice-Hall, 1990
Buku Teks
edited by John Herman Randali, Justus Buchler
Barnes & Noble, 1950
Buku Teks