Pavel Kostov

• Fascinating Facts for the Whole Family
• G. Dimitrov--belezhit marksist-leninet︠s︡
• Istorichesko edinstvo - bratski sŭi︠u︡z
• Materiali po istorii︠a︡ na Bŭlgarskata Komunisticheska partii︠a︡
• Nashe zname
• Roli︠a︡ta na rabotnicheskata klasa v suvremenii︠a︡ revoli︠u︡t︠s︡ionen prot︠s︡es
• Septemvri 1923
• Septemvriĭskoto vŭstanie - 1923