Tobias Scheunchen (eds.), "al-Tauʾamān - التوأمان " in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/5139
  
    
      
        
          al-Tauʾamān
          التوأمان
          التوءمان
          Refers to the two citadels of al-Ḥasanīya and al-Jadīd in al-Ṣafrāʾ.
          https://bqgazetteer.bethmardutho.org/place/5139
          http://syriaca.org/place/5139
          
            Riḥlat Ibn JubayrIbn JubayrM.J. de Goeje 
            188