Cetic.br. (2020). Executive Summary - Survey on Internet use by children in Brazil: ICT Kids Online Brazil 2019.
Chicago-čujuhus (17. p.)Cetic.br. Executive Summary - Survey on Internet Use by Children in Brazil: ICT Kids Online Brazil 2019. 2020.
MLA-čujuhus (9. p.)Cetic.br. Executive Summary - Survey on Internet Use by Children in Brazil: ICT Kids Online Brazil 2019. 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.