Ateistična tribuna.

Published 1980

Religija i religioznost /

by Krăstev, Krăstju Kotov, 1866-1919
Published 1974

Kliment Ochridski : razkaz za nego i za vragovete mu /

by Dragova, Nadežda
Published 1966

Chumaniz'm i religija /

Published 1971

Čovek, religija, poznanije /

by Mizov, Nikolaj
Published 1973