00526naa#a2200169#i#450# EN\INFRA-M\bibl\8228 20250105202511.7 1998-0728 20151019b2015####ek#y0engy0150####ca RUS RU On Developing General-Purpose Educational Activities in Primary School Students Abstract Journal article Moscow INFRA-M Academic Publishing LLC. 2015 7 с. Journal article local Vinogradova Natalya Fedorovna naukaru.ru