D.X.TURSUNMUROTOV. DETERMINATION OF PRINCIPAL SYMPTOMS IN THE DIVISION OF OBJECTS IN CLASSES. World Bulletin of Social Sciences, [S. l.], v. 3, n. 10, p. 17-19, 2021. Disponível em: https://scholarexpress.net/index.php/wbss/article/view/145. Acesso em: 27 nov. 2024.