Thomas A. Carlson (ed.), "Siirt" in last modified January 14, 2014, http://syriaca.org/place/724
    
        
            
                
                    Siirt
                    Seert
                    Arzun
                    
          
                    http://syriaca.org/place/724
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        3, 8, 14, 22, 38, 39, 40, 50, 82-99, 101, 105, 116, 124, 276, 323, 346, 350, 354, 358, 359, 360, 363, 366