Tikhomirov, M.
The towns of ancient Rus /M. Tikhomirov ; [translated from the 2nd Russian ed. by Y. Sdobnikov].
Foreign Languages Publishing House, 1959
Buku Teks
Vernadsky, George
The origins of Russia
At The Clarendon Press, 1959
Buku Teks
Rogger, Hans
Russian in the age of modernisation and revolution 1881-1917
Longman, 1992
Buku Teks
Crummey, Robert O.
The Formation of Muscovy 1304 - 1613
Longman, 1993
Buku Teks
Fennell, John
Crisis of medieval Russia 1200-1304
Longman, 1983
Buku Teks