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"Economia Internacional" by Maria Auxiliadora de Carvalho and César Roberto Leite da Silva is a key Brazilian academic text for studying foreign commerce, available in editions covering classic trade theory and Brazilian economic reality. While full PDF versions are not legally available, partial content and chapter summaries can be found on platforms such as Studocu and Passei Direto. Access the book's details, including edition information, on Google Books . economia internacional maria auxiliadora de carvalho pdf