Thomas A. Carlson (ed.), "ʻUngi’" in last modified January 14, 2014, http://syriaca.org/place/2400
    
        
            
                
                    ʻUngi’
                    
                    http://syriaca.org/place/2400
                    
                        
              David Wilmshurst
            
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        82-83, 349, 352