Decentralized Waste Management: Using Smart Contracts and Blockchain for Transparent Plastic Collection and Recycling in Urban Slums. International Journal of Environmental Sciences, [S. l.], p. 96–103, 2025. DOI: 10.64252/v3r0rd32. Disponível em: https://theaspd.com/index.php/ijes/article/view/8191.. Acesso em: 2 apr. 2026.