@article{{japmai}{}, author = {Wulandari, L., Munasih, M.}, title = { Blackwater Purification Using Sand Filter}, journal = {Journal of Applied Philosophical Management and Innovation}, volume = {1}, number = {1}, year = {2018}, doi = {10.26805/japmai.v1i1.19}, url = {https://journal.apmai.org/v2/index.php/japmai/article/view/19} }