BILLING, J.; CORDINGLEY, T.; TRUMAN, K. ‘Closed Loop’ 3D Printing from waste packaging: How to Case Study. Making Futures Journal, [S. l.], 2015. Disponível em: https://www.makingfutures-journal.org.uk/index.php/mfj/article/view/259. Acesso em: 30 apr. 2026.