Cetic.br. (2021). Executive Summary - Survey on the use of information and communication technologies in Brazilian households: ICT Households 2020.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Households: ICT Households 2020. 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Households: ICT Households 2020. 2021.
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