@article{JPFA_2017, title={Introduction, Author Guidelines, and Table of Contents JPFA Vol 7 No 2 December 2017}, volume={7}, url={https://journal.unesa.ac.id/index.php/jpfa/article/view/2049}, DOI={10.26740/jpfa.v7n2.pii-xi}, number={2}, journal={Jurnal Penelitian Fisika dan Aplikasinya (JPFA)}, author={JPFA, Editor}, year={2017}, month={Dec.}, pages={ii-xi} }