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Russian ruble - Wikipedia
Ruble - Wikipedia
1 USD to RUB - US Dollars to Russian Rubles Exchange Rate - Xe
RUB/USD Currency Exchange Rate & News - Google Finance
1 Russian ruble to US dollars Exchange Rate. Convert RUB/USD
1 US dollar to Russian rubles Exchange Rate. Convert USD/RUB
US Dollar to Russian Ruble Exchange Rate Chart | Xe
USD to RUB Exchange Rate - Bloomberg.com
Russian Ruble (RUB): Overview of Russia's Currency - Investopedia
Convert Russian Ruble To United States Dollar - Forbes