Spektra, Editor. “FRONT MATTER SPEKTRA VOLUME 3 ISSUE 3 DECEMBER 2018”. Spektra: Jurnal Fisika dan Aplikasinya 3, no. 3 (December 30, 2018). Accessed April 19, 2024. https://journal.unj.ac.id/unj/index.php/spektra/article/view/10382.