Spektra, Editor. “FRONT MATTER SPEKTRA VOLUME 7 ISSUE 1, APRIL 2022”. Spektra: Jurnal Fisika dan Aplikasinya 7, no. 1 (April 30, 2022). Accessed May 2, 2024. https://journal.unj.ac.id/unj/index.php/spektra/article/view/23027.