Thomas A. Carlson (eds.), "Ḥirta" in The Gorgias Encyclopedic Dictionary of the Syriac Heritage last modified September 4, 2013, http://syriaca.org/cbss/271
  
    
      
        
          
            H.
            Takahashi
          
          Ḥirta
          
        
        
          
            
              Sebastian
              P.
              Brock
            
          
          
            
              Aaron
              M.
              Butts
            
          
          
            
              George
              A.
              Kiraz
            
          
          
            
              Lucas
              Van Rompay
            
          
          The Gorgias Encyclopedic Dictionary of the Syriac Heritage
          http://syriaca.org/cbss/1
          
            Gorgias Press
            Piscataway,NJ
            
            2011
          
          198-199
        
        http://syriaca.org/cbss/271