Azmina Suleman
A Passage to Eternity: A mystical account of a Near-Death Experience and poetic journey into the Afterlife.
Amethyst Publishing, Calgary 2005

Peter Dinzelbacher
An der Schwelle zum Jenseits. Sterbevisionen im interkulturellen Vergleich
Herder Taschenbuch, Basel und Freiburg i.Br., 1989

Allan Kellehear
Experiences Near Death: Beyond Medicine and Religion.
Oxford University Press, New York 1996