Spektra, Editor. “BACK MATTER SPEKTRA VOLUME 3 ISSUE 3 DECEMBER 2018”. Spektra: Jurnal Fisika dan Aplikasinya 3, no. 3 (December 30, 2018). Accessed April 16, 2025. http://103.8.12.212:33180/unj/index.php/spektra/article/view/10366.