BROWN, Cynthia Stokes. What Is a Civilization, Anyway?. World History Connected, [S. l.], v. 6, n. 3, 2009. DOI: 10.13021/whc.v6i3.4803. Disponível em: https://journals.gmu.edu/whc/article/view/4803. Acesso em: 28 oct. 2025.