@article{Anwar_2019, title={Front Matter Vol 18 No. 2 September 2019}, volume={18}, url={http://ejournal2.litbang.kemkes.go.id/index.php/jek/article/view/2508}, DOI={10.22435/jek.18.2.2508.%p}, number={2}, journal={JURNAL EKOLOGI KESEHATAN}, author={Anwar, Athena}, year={2019}, month={Dec.}