1. The Meaning of Icons;Losskey,1982
2. Icons in the Nile Valley Egyptian;Skalova,2003
3. Art in making;Bomford,1989
4. The Icons of Yuhanna and Ibrahim the Scribe;Mulock,1946
5. Z. Skalova, Conservation problems in Egypt: icons, preliminary classification and some case studies, Preprints of the IXth Triennal Conference, vol. 2, ICOM Committee for Conservation, Dresden, 1990, pp. 777–782.