Tzvetkov, Plamen S. Books

History of the Balkans a Regional Overview From a Bulgarian Perspective Vol.i
1993 0-7734-1956-X
This is a Bulgarian view on the history of Eastern Europe and the world. It covers the origin of the Bulgars, medieval Bulgaria, the Byzantine Empire, the five-centuries-long Ottoman rule, the rise of Balkan nationalism, and the history of Bulgaria, the Balkans and Eastern Europe from Bulgaria's constitution as a sovereign state in 1879 up to 1992.

History of the Balkans a Regional Overview From a Bulgarian Perspective Vol.ii
1994 0-7734-1958-6
This is a Bulgarian view on the history of Eastern Europe and the world. It covers the origin of the Bulgars, medieval Bulgaria, the Byzantine Empire, the five-centuries-long Ottoman rule, the rise of Balkan nationalism, and the history of Bulgaria, the Balkans and Eastern Europe from Bulgaria's constitution as a sovereign state in 1879 up to 1992.