Cetic.br. (2021). Executive Summary - Survey on the use of information and communication technologies in Brazilian households: ICT Households 2020.
Chicago-čujuhus (17. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Households: ICT Households 2020. 2021.
MLA-čujuhus (9. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Households: ICT Households 2020. 2021.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.