edited by Robert N. Bellah
Free Press, 1965
Buku Teks
Christopher, Dawson, author
Catholic University of America Press, 20001
Buku Teks
edited by Philip Warren Thayer
Johns Hopkins Press, 1956
Buku Teks
Edited by Ali Riaz
Routledge : Lightning Source UK Ltd, 2010
Buku Teks
Winzeler, Robert L.
Buku Teks