SPEKTRA, Editor. Front Matter SPEKTRA Volume 9 Issue 3, December 2024. Spektra: Jurnal Fisika dan Aplikasinya, [S. l.], v. 9, n. 3, 2024. DOI: 10.21009/SPEKTRA.09300. Disponível em: https://journal.unj.ac.id/unj/index.php/spektra/article/view/52115. Acesso em: 21 jan. 2025.