@article{Spektra_2020, title={BACK MATTER SPEKTRA VOLUME 5 ISSUE 2, AUGUST 2020}, volume={5}, url={https://journal.unj.ac.id/unj/index.php/spektra/article/view/17003}, DOI={10.21009/SPEKTRA.052111}, number={2}, journal={Spektra: Jurnal Fisika dan Aplikasinya}, author={Spektra, Editor}, year={2020}, month={Aug.} }