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Are you Andrés Redchuk, author of the books below?
Optimización Matemática con R. Volumen I by Andrés Redchuk Six SIGMA with R by Emilio L. Cano Revista de Direito, Estado e Telecomunicacoes by Juarez Quadros do Nascimento Journal of Law and Regulation / Revista de Direito Setorial e... by Daniele Fontes Revista de Direito, Estado e Telecomunicacoes by Juarez Nascimento Six Sigma with R by Emilio L. Cano


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