KILICHOVA MARHABO KHUDOYKULOVNA; MEDVEDEVA OLGA ANOTOLIEVNA. ROBLEMS DEVELOPMENT OF ELEMENTARY MATHEMATICAL CONCEPTS IN PRESCHOOL EDUCATION. INTERNATIONAL JOURNAL OF SCIENCE-INNOVATIVE RESEARCH, [S. l.], v. 1, n. 4, p. 483–487, 2025. Disponível em: https://globalscholars.uz/index.php/ijsir/article/view/873. Acesso em: 22 mar. 2026.