Zavalnyuk, Oleksandr. “Ivan Ohgienko Educational and Pedagogical Activity in Kamyanets-Podilsky State Ukrainian University: Historiographic Notes”. Pedagogical Discourse0, no. 15 (October 10, 2013): 247-251. Accessed April 25, 2024. https://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/707.