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2) Tarek Bahaa El Din Hamdallah “Use of scientific imaging methods in the study of numbering of artifacts”, Master degree - Faculty of Applied Arts. Helwan 2001
3) JFASumus, G. Guttari, Lazzarini, G.MusmeciPR. Fwuerker. Holography. Conservation-Journal of unlennational institute for Historic and Artistic works. volume41number-Eyespottieswood LTD-Englandm,1996 P:756.
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7) http//plasmascanner.lightart.com,
8) http//www.mitpress.mit.edu/Leanardo/homo.html