@article{Spektra_2018, title={BACK MATTER SPEKTRA VOLUME 3 ISSUE 3 DECEMBER 2018}, volume={3}, url={https://journal.unj.ac.id/unj/index.php/spektra/article/view/10366}, DOI={10.21009/SPEKTRA.033111}, number={3}, journal={Spektra: Jurnal Fisika dan Aplikasinya}, author={Spektra, Editor}, year={2018}, month={Dec.} }