Stefan Zhelev

• 75 godini Shumenska partiĭna organizat︠s︡ii︠a︡, 1819-1967
• Bulgaria, forty years along the road of socialism
• Bŭlgarii︠a︡, 40 godini po pŭti︠a︡ na sot︠s︡ializma
• Pirinski sokoli
• Pobednii︠a︡t shturm
• The cooperative movement in Bulgaria