(eds.), "Qūhistān - قوهستان " in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/5426
  
    
      
        
          Qūhistān
          قوهستان
          
          This is the mountainous and partially arable region which stretches south of Nīs̲h̲āpūr as far as Sīstān in the south-east.
          
            قوهستان كورة بخراسان ومدينة بكرمان
          
          https://bqgazetteer.bethmardutho.org/place/5426
          http://syriaca.org/place/5426
          
            Aḥsan al-taqāsīm fī maʿrifat al-aqālīmMuḥammad ibn Aḥmad Maqdisī
            24
          Encyclopaedia of Islam, Second EditionP. Bearman