Sergey Minov and Daniel L. Schwartz (eds.), "Ikhwan al-Safa (Brethern of Purity)" in last modified March 11, 2022, http://syriaca.org/keyword/ikhwan-al-safa-brethern-of-purity
  
    
      
        Ikhwan al-Safa (Brethern of Purity)
        
          
          
        
        http://syriaca.org/keyword/ikhwan-al-safa-brethern-of-purity