LI, Xinrui. Research on Mental Health and PTSD Status of Bystanders in School Bullying. Journal of Educational Development and Social Sciences, [S. l.], v. 1, n. 4, p. 36–40, 2026. DOI: 10.62051/jedss.v1n4.05. Disponível em: https://jedss.org/index.php/ojs/article/view/33. Acesso em: 11 sep. 2026.