Thomas A. Carlson (ed.), "Tis" in last modified January 14, 2014, http://syriaca.org/place/2392
    
        
            
                
                    Tis
                    Tīs
                    
          
                    http://syriaca.org/place/2392
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        276, 279, 280-281, 315, 365, 366, 367