Spektra, Editor. “BACK MATTER SPEKTRA VOLUME 8 ISSUE 2, AUGUST 2023”. Spektra: Jurnal Fisika dan Aplikasinya 8, no. 2 (August 30, 2023). Accessed November 22, 2024. https://journal.unj.ac.id/unj/index.php/spektra/article/view/38293.