Ė. B. Valev

• Albani︠a︡
• Bolgariia
• Bolgarii︠a︡
• Ėkonomicheskai︠a︡ geografii︠a︡ zarubezhnykh sot︠s︡ialisticheskikh stran (Evropa, Kuba)
• Ėkonomicheskai︠a︡ geografii︠a︡ zarubezhnykh sot︠s︡ialisticheskikh stran Azii
• Kuba
• Rumyniia