= From the History of Trade and Banking in Svishtov. Trading-and-Banking (Money-changing) Companies and Banking Houses and their Importance for the Town Economy (1878 - 1912)
(2018)
[The contribution of Gabrovo - from the revival crafts to the industry of new times (based on documents in Regional Historical Museum - Gabrovo)]
(2016)
[How many and which were the first factories in the bulgarian lands before the liberation in 1878? Attempt of analysis relying on the sources and the historiography]
(2016)