TOMASZEWSKI, Norbert. The overview of the Presidential Primary campaign of Bernie Sanders: the analysis of his political background and the influence of celebrity endorsement and social media on voters. Political Preferences, [S. l.], n. 14, 2017. Disponível em: https://trrest.vot.pl/ojsus/index.php/PP/article/view/4871. Acesso em: 7 may. 2025.