YUAN, Rui. Analysis and Practical Research on Drowning Prevention in Natural Open Waters in China. Frontiers in Sustainable Development, [S. l.], v. 5, n. 3, p. 85–90, 2025. DOI: 10.54691/j40vdf93. Disponível em: https://fsdjournal.org/index.php/ojs/article/view/39. Acesso em: 29 jul. 2026.