Grossman, Peter (1991). Atiya, Aziz S. (ed.). Cross-in-Square. New York: Macmillan. {{cite book}}: |work= ignored (help)
jstor.org
Dark, Ken (November 1999). "The Byzantine Church and Monastery of St Mary Peribleptos in Istanbul". The Burlington Magazine. 141 (1160): 662–63. JSTOR888553.
