00668naa#a2200181#i#450# EN\INFRA-M\bibl\16314 20240510014118.5 2500-3305 20170426b2017####ek#y0engy0150####ca RUS RU Cognitive Development of Preschoolers Aged 5-7 in Environmental Education System as a Factor of Successful Schooling Journal article Moscow INFRA-M Academic Publishing LLC. 2017 11 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 RUS Kuznecova Yu. M. naukaru.ru