SIPPL, C. Wertstoff. #schuleverantworten, [S. l.], v. 1, n. 2, p. 197–198, 2021. DOI: 10.53349/sv.2021.i2.a81. Disponível em: https://schule-verantworten.education/journal/index.php/sv/article/view/81. Acesso em: 24 apr. 2024.