SPEKTRA, Editor. FRONT MATTER SPEKTRA VOLUME 4 ISSUE 3, DECEMBER 2019 . Spektra: Jurnal Fisika dan Aplikasinya, [S. l.], v. 4, n. 3, 2019. DOI: 10.21009/SPEKTRA.04300. Disponível em: https://journal.unj.ac.id/unj/index.php/spektra/article/view/13544. Acesso em: 24 nov. 2024.