LIU, Y. A Study on the Rise of the Urban Class and Changes in Social Structure during Modern Urbanization. Advanced Electromagnetics, [S. l.], v. 15, n. 3, p. 9055–9059, 2026. DOI: 10.7716/aem.v15i3.4053. Disponível em: https://www.aemjournal.org/index.php/AEM/article/view/4053. Acesso em: 17 aug. 2026.