* Journal of a residence in Circassia during the years 1837, 1838, and 1839 - Bell, James Stanislaus (English)* , volumes 4–6.
==References====Further reading==* Journal of a residence in Circassia during the years 1837, 1838, and 1839 - Bell, James Stanislaus (English)* Dubrovin, N. , volumes 4–6.