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Books about Mantashev:
[ Armenian Businesspeople, Including: Bagrat Asatryan, Calouste Gulbenkian, Alexander Mantashev, David Yang, Matild... by Hephaestus Books (Sep 30, 2011)
Wiki information Mantashev:
Alexander Mantashev was a prominent Armenian oil magnate, industrialist, financier, and a philanthropist. By the end of his life he had become one of the world's wealthiest individuals.