Isaienko Оlha. “Hetman Petro Konashevych-Sahaidachny in the Works of Ukrainians Historians of the Second Half of the XIX Century”. Skhid, no. 7(139) (January 3, 2016): 16–20. Accessed July 19, 2025. https://skhid.kubg.edu.ua/article/view/57629.