AP0867 Synthesis and Characterization of Metamaterials from Beetroot Juice and Metal Salt Solutions. Iraqi Journal of Applied Physics, [S. l.], v. 20, n. 4, p. 843–852, 2025. DOI: 10.2025/20x8fh53. Disponível em: http://ijap-iq.com/index.php/ijap/article/view/140. Acesso em: 7 may. 2026.