Cetic.br. (2022). Executive Summary - Survey on the use of information and communication technologies in the Brazilian public sector: ICT Electronic Government 2021.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in the Brazilian Public Sector: ICT Electronic Government 2021. 2022.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in the Brazilian Public Sector: ICT Electronic Government 2021. 2022.
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