Chagas V, Da-Costa G. WhatsApp and transparency: an analysis on the effects of digital platforms´ opacity in political communication research agendas in Brazil. EPI [Internet]. 6 de abril de 2023 [citado 25 de abril de 2024];32(2). Disponible en: https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/87120