Thomas A. Carlson (ed.), "Beth Rāgūlā" in last modified January 14, 2014, http://syriaca.org/place/1057
    
        
            
                
                    Beth Rāgūlā
                    Beṯ Rāgūlā
                    
                    
                        Lower Ṭiyārī district
                        Hakkārī region
                    
          
                    http://syriaca.org/place/1057
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        288, 290