00540naa#a2200169#i#450# EN\INFRA-M\bibl\2054 20260124034442.6 1998-0728 20140417b2014####ek#y0engy0150####ca RUS RU Personal Enhancement of Primary School Children at the Elective Class of “Economics: The Baby Steps” Journal article Moscow INFRA-M Academic Publishing LLC. 2014 4 с. Journal article local Korneeva Olga Stanislavovna naukaru.ru