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1 feb 2006 anni - ГОСТ Р 52656-2006.

Descrizione:

Образовательные интернет-порталы федерального уровня. Общие требования;

Aggiunto al nastro di tempo:

Federal laws on distance education

ByАлексей

21 nov 2019

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Data:

1 feb 2006 anni

Adesso

~ 19 years ago

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