XIAO, Yafei. A Comprehensive Review of the Natural Approach. Frontiers in Sustainable Development, [S. l.], v. 5, n. 5, p. 97–105, 2025. DOI: 10.54691/x8vxv213. Disponível em: https://fsdjournal.org/index.php/ojs/article/view/119. Acesso em: 19 apr. 2026.