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Pushkin Russian Language Institute (Moscovo / Central Federal District / Rússia)
RussianLab (Moscovo / Central Federal District / Rússia)
Russian Village (Moscovo / Central Federal District / Rússia)
Saint Petersburg Polytechnic State University (São Petersburgo / Northwestern Federal District / Rússia)
Extra Class Language Center (São Petersburgo / Northwestern Federal District / Rússia)
Inlingua - Moscow (Moscovo / Central Federal District / Rússia)
ABC International Language & Training School (São Petersburgo / Northwestern Federal District / Rússia)
Accent - Educational language center (Moscovo / Central Federal District / Rússia)
Lingua-Seasons (Moscovo / Central Federal District / Rússia)