HAMZAYEV, X. The purposes and the maintenance of modern mathematical formation of children of preschool age. Журнал Педагогики и психологии в современном образовании, [S. l.], n. 1, 2021. Disponível em: https://science.jdpu.uz/index.php/ppmedu/article/view/2257. Acesso em: 15 май. 2025.