00512naa#a2200181#i#450# EN\INFRA-M\bibl\6184 20241016222951.3 1998-0728 20150617b2015####ek#y0engy0150####ca RUS RU Portfolio as Reflection of Pupil’s Individual Achievements Journal article Moscow INFRA-M Academic Publishing LLC. 2015 4 с. Journal article local Ivanova M. Plekhanova I. naukaru.ru