Hamzayev X. The purposes and the maintenance of modern mathematical formation of children of preschool age. ppmedu [Интернет]. 1 октябрь 2021 г. [цитируется по 20 сентябрь 2024 г.];(1). доступно на: https://art.jdpu.uz/index.php/ppmedu/article/view/2257