Cetic.br. (2020). Executive Summary - Survey on the use of information and communication technologies in Brazilian schools: ICT in Education 2019.
Chicago-čujuhus (17. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Schools: ICT in Education 2019. 2020.
MLA-čujuhus (9. p.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Schools: ICT in Education 2019. 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.