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sofia (bulgaria oblast)

Otchet za organizat︠s︡ionnoto sŭstoi︠a︡nie i deĭnostta na komitetite na Otechestvenii︠a︡ front na Sofiĭskata oblast

By

Sofiĭska oblast

By Todor Khristov

Sofiĭska oblast zapad

By Dimitŭr Tonin

Selski bit i izkustvo v Sofiĭsko

By Kostov, St. L.

Krepostta Kolkali︠a︡nski Urvich u kŭsnosrednovekovnii︠a︡t manastir v nei︠a︡

By Nikolaĭ Ovcharov