Thomas A. Carlson (ed.), "Nisibis" in last modified January 14, 2014, http://syriaca.org/place/723
    
        
            
                
                    Nisibis
                    
          
                    http://syriaca.org/place/723
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        8, 14, 38, 40-49, 77, 354, 355