The role of the regional periodical press in the illustration activity of the Kharitonenko's family (on materials of 1990–2000 ages.) за авторством O. M. Haidai

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Business and public work Kharitonenko's dynasty in documents of the State archives of Sumy region за авторством O. M. Haidai

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The evolution of the cultural status of entrepreneurs in the second half of XIX – early XX century (for example of a collector P. I. Kharitonenko) за авторством O. M. Haidai

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Sugar industry as a part of agricultural crops: history of formation and development by example of Kharytonenko's enterprises (mid XIX – early XX c.) за авторством O. M. Haidai

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Influence of I. G. Kharytonenko on the sugar industry development of the Russian Empire за авторством O. M. Haidai

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