Cetic.br. (2022). Executive Summary - Survey on the use of Information and communication technologies in brazilian enterprises: ICT Enterprises 2021.
Chicago-čujuhus (17. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Enterprises: ICT Enterprises 2021. 2022.
MLA-čujuhus (9. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Enterprises: ICT Enterprises 2021. 2022.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.