Vernadsky, George
The origins of Russia
At The Clarendon Press, 1959
 Buku Teks SO
Vernadsky, George
Mongols and Russia
Yele University Press, 1953
 Buku Teks SO
Fennell, John
Crisis of medieval Russia 1200-1304
Longman, 1983
 Buku Teks SO
Laserson, Max M.
American impact on Russia : diplomatic ideological 1784-1917
Macmillan, 1950
 Buku Teks SO
Thaden, Edward C.
Russia since 1801 : the making of a new society
John Wiley & Sons, 1971
 Buku Teks SO