Page 23. Book shows how languages in the Mandara Mountains are very similar, aside from Zumaya, which is nearly extinct. 
      
      ELP Language
              Zumaya
      
      Resource Types
              Document
      
      Media Image
              Placeholder 1
      
      Tag
              Linguistics
      
      URL
              https://books.google.com/books?id=EnEFNOcYIrUC&pg=PA23&lpg=PA23&dq=zumaya%20lan…