SPEKTRA, Editor. FRONT MATTER SPEKTRA VOLUME 5 ISSUE 3, DECEMBER 2020 . Spektra: Jurnal Fisika dan Aplikasinya, [S. l.], v. 5, n. 3, 2020. DOI: 10.21009/SPEKTRA.05300. Disponível em: https://journal.unj.ac.id/unj/index.php/spektra/article/view/18297. Acesso em: 5 nov. 2024.