00626naa#a2200169#i#450# EN\INFRA-M\bibl\39310 20241202141248.1 1998-1740 20200915b2020####ek#y0engy0150####ca RU Triangle of Knowledge “Extra-Day Educational Activity and Conditions of Its Realization in Education Journal article Moscow INFRA-M Academic Publishing LLC. 2020 9 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Nazarova T. S. naukaru.ru