Cetic.br. (2021). Executive Summary - Survey on the use of information and communication technologies in Brazilian Schools: ICT in Education 2020.
Παραπομπή σε μορφή Chicago (17η εκδ.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Schools: ICT in Education 2020. 2021.
Παραπομπή σε μορφή MLA (9th εκδ.)Cetic.br. Executive Summary - Survey on the Use of Information and Communication Technologies in Brazilian Schools: ICT in Education 2020. 2021.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.