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2- Bible (The Reader’s). Oxford and Cambridge University Press, 1951.
3- Bible for To-Day (The), John Stirling. Oxford University Press, 1941.
4- Cathares (Les), Jean Blum. Editions du Rocher 1991.
5- Christ (The Debate about), Don Cupitt. SCM Press Ltd, London 1979.
6- Christianity, Edwyn Bevan. The Home University Library of Modern Knowledge, London 1938.
7- Commentary on the Bible (A), Arthur S. Peake; T.C. and E.C. Jack LTD, London and Edinburgh, Great Britain 1929.
8- Compton’s Interactive Encyclopedia (CD ROM).
9- Did our Lord Visit Britain?, C.C. Dobson. Covenant Publishing Co. Ltd, London, 1993.
10- Early Church (The), Henry Chadwick, Penguins Books, England, 1967.
11- Encarta 96, Microsoft Encarta Encyclopaedia.
12- Gesù di Nazareth, Franco Zeffirelli. Video Philips.
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14- Gospel (The Gnostic), Elaine Page. Vintage Book, New York, USA, 1989.
15- Gospel (The Lost), Buston L. Mack. Harper, San Francisco, USA, 1993.
16- Holy Blood and the Holy Grail (The); M. Baigent, R. Leigh and H. Lincoln. Corgi Books, 1993.
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20- Joseph of Arimathea, Isabel Hill Elder. Real Israel Press, Glastonbury, 1993.
21- King Arthur and the Grail, Richard Cavendish. Book Club Associates, London 1978.
22- Man of Galilee, Frederick Pelser. Autumn House, Alma Park, Grantham, Lincs NG31 9SL, 1994.
23- Messianic Legacy (The); M. Baigent, R. Leigh and H. Lincoln. Corgi Books, 1994.
24- Old and New Testaments (Religious Development Between the), R.H. Charles. The Home University Library of Modern Knowledge, London 1942.
25- Perceval ou le Roman du Gral, Chrétien de Troyes. Editions Gallimard 1974.
26- Scrolls from the Dead Sea (The), Edmund Wilson. Fontana Books, 1958.
27- Scrolls (The Dead Sea), A Reappraisal, John Allegro. Penguin Books, 1975.
28- Scrolls (The Hidden), Neil Asher Silberman. BCA, London, 1995.
29- Scrolls (The Meaning of the Dead Sea), A. Powell Davis. A Mentor Book, Penguin Book, New York, USA, 1956.
30- Search of Historical Jesus (In), Lee Roddy and Charles E. Sellier Jr. Bantam Book, December 1979.
31- Search for the Twelve Apostles (The), William Steuart McBirnie, Ph.D. Living Books, Tyndale House Publishers, Inc., Wheaton, Illinois, USA, 1979.
32- Short History of the Early Church (A), Harry R. Boer. Williams B. Eerdmans Publishing Co, Grand Rapids, Michigan, USA, 1976.
33- Templiers aux Francs-Maçons (Des); M. Baigent et R. Leigh. Edition du Rocher, 1991 (Original Title: The Temple and the Lodge).
34- Tomb of God (The), Richard Andrews and Paul Schellenberger; Little, brown and Company, Great Britain 1996.
35- Two Distinct Religions -Christianity and the Religion of Jesus Christ-, Leroy Jeremiah Montgomery, Informer Publishing Co, Houston, Texas, USA.
36-Webster’s Concise Interactive Encyclopedia (CD ROM).