WANG, Ce. Study on the Social Mentality of Low and Middle-income People in Different Industries During the Covid-19. Frontiers in Humanities and Social Sciences, [S. l.], v. 3, n. 9, p. 126–132, 2023. DOI: 10.54691/fhss.v3i9.5643. Disponível em: https://bcpublication.org/index.php/FHSS/article/view/5643. Acesso em: 21 jul. 2026.