Marchuk Оleksandr. “Vinnytsia Period of the Activity of UNR Minister of Education, Ivan Ogienko: Contribution to the Process of the National Educational System Formation (February 1919)”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 29 (September 2, 2019): 54–60. Accessed May 19, 2024. https://intranet.vspu.edu.ua/nzhist/index.php/nzhist/article/view/598.