LIU, Rui. Why Civilizations Collapse: The Cruciality of Social Solidarity and the Dangers of Its Absence. Interdisciplinary Humanities and Communication Studies, [S. l.], v. 2, n. 5, p. 3532, 2024. DOI: 10.61173/v5m58060. Disponível em: https://ihcs.deanfrancis.press/article/view/867. Acesso em: 4 nov. 2026.