ŻULPO, Maciej. Medi@stery 2019. Media Biznes Kultura, [S. l.], n. 1(6), p. 155–156, 2019. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/MBK/article/view/4983. Acesso em: 18 cze. 2025.