Wolf, Robert Lee
The Balkans in our time
The Norton Library, 1967
 Buku Teks
Stoyan, P.B.
Spotlight on the Balkans
Foreign Policy Association, 1940
 Buku Teks SO
Bronowski, Jacob, 1908-1974, editor
The ascent of man: one the outstanding book of our time/ J. Bronowski
Little, Brown & Co., 1973
 Buku Teks SO
Burgmann, Verity
In Our time : socialism and the rise of labor, 1885-1905 / Verity Burgmann
Allen & Uwin, 1985
 Buku Teks SO
Kaplan, Robert D.
Eastward to tartary: travels in the Balkans, the middle east, and the caucasus
Caroline Cunningham, 2000
 Buku Teks SO