DU, Hong. From Environmental Ethics to Sustainability Ethics. Problemy Ekorozwoju , [S. l.], v. 20, n. 1, p. 6–14, 2025. DOI: 10.35784/preko.6834. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/6834. Acesso em: 22 feb. 2026.