Kosbergenova, Nurzada Tolıbaevna. “A MODERN ANALYSIS OF THE PROBLEMS OF ‘EPISTEMOLOGICAL OPTIMISM AND SKEPTICISM’”. Educational Research in Universal Sciences 2, no. 5 (May 30, 2023): 80–85. Accessed November 25, 2024. http://erus.uz/index.php/er/article/view/2594.