WULANDARI, Lies Kurniawati; MUNASIH, Munasih. Blackwater Purification Using Sand Filter. Journal of Applied Philosophical Management and Innovation, [S.l.], v. 1, n. 1, p. 35-42, dec. 2018. ISSN 2620-4096. Available at: <https://journal.apmai.org/v2/index.php/japmai/article/view/19>. Date accessed: 24 nov. 2024. doi: https://doi.org/10.26805/japmai.v1i1.19.