MARTYNIUK, Wiesława. School Bell ? an Attribute of Pupils? Daily Life. INSTED: Interdisciplinary Studies in Education & Society, [S. l.], v. 15, n. 3(59), p. 57–73, 2012. Disponível em: https://insted-tce.pl/ojs/index.php/tce/article/view/213. Acesso em: 8 jun. 2025.