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https://openaccess.library.uitm.edu.my/Record/ndltd-IBICT-urn-repox.ist.utl.pt-RI_UTFPR-oai-repositorio.utfpr.edu.br-1-564
https://openaccess.library.uitm.edu.my/Record/ndltd-IBICT-urn-repox.ist.utl.pt-RI_UTFPR-oai-repositorio.utfpr.edu.br-1-564