Hrom, Oksana. “LINGVO-PHILOSOPHICAL RESEARCH OF THE CONCEPTS OF «MENTAL ACTIVITY»”. Scientific Notes of Ostroh Academy National University: Philology Series, no. 9(77) (May 13, 2020): 3-6. Accessed September 29, 2020. https://journals.oa.edu.ua/Philology/article/view/2779.