Thomas A. Carlson (ed.), "Gazarta" in last modified January 14, 2014, http://syriaca.org/place/712
    
        
            
                
                    Gazarta
                    Gāzartā
                    Beṯ Zabdaï
                    Qardū
                    
          
                    Not the same place as Upper Jazira, which is only west of the Tigris.
                    http://syriaca.org/place/712
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        3, 5, 8, 14, 20, 38, 39, 40, 50, 57, 70, 71, 73, 83, 100-124, 138, 164, 165, 179, 215, 219, 284, 351, 354, 355, 358, 359, 360, 365, 366