Thomas A. Carlson (eds.), "Edessa" in The Gorgias Encyclopedic Dictionary of the Syriac Heritage last modified September 4, 2013, http://syriaca.org/bibl/192 A. Harrak Edessa Sebastian P. Brock Aaron M. Butts George A. Kiraz Lucas Van Rompay The Gorgias Encyclopedic Dictionary of the Syriac Heritage http://syriaca.org/bibl/1 Gorgias Press Piscataway, NJ 2011 138-139 http://syriaca.org/bibl/192