Armstrong, K.
A History of God
Ballantine Books, New York 1994
ISBN: 0345384563
Armstrong, K.
Buddha
Penguin 2004
ISBN: 0143034367
Bowker, J.
World Religions
DK Publishing, Inc, New York 2006
ISBN: 0756617723
Bowker, J.W.
God: A Brief History
DK Publishing, New York 2002
ASIN: B000N7B5W2
Smith, H.
The World´s Religions
HarperOne 2006
ISBN: 0062508113
Harvey, G.
Animism
Columbia University Press 2005
ISBN: 023113701X
Asbridge, T.
The First Crusade
Oxford University Press, NY 2005
ISBN: 0195189051
Watt, M.
The Faith and Practice of Al Ghazzali
One World Publications, London 2000
ISBN: 1851680624
Helms, R.
Gospel Fictions
Prometheus Books, Amherst, NY 1990
ISBN: 0879755725
Helms, R.
Who Wrote the Gospels?
Millennium Press, Altadena, CA 1997
ISBN: 0965504727