BADRAH, Sitti; AIDINA, Resti Putri; ANWAR, Andi. The Utilization of Effective Microorganisms 4 (EM4) Using Biofilm Media to Reduce Amonia and Phosphate in Waste Water at Hospital. Faletehan Health Journal, [S. l.], v. 8, n. 02, p. 102–108, 2021. DOI: 10.33746/fhj.v8i02.261. Disponível em: https://journal.lppm-stikesfa.ac.id/index.php/FHJ/article/view/261. Acesso em: 14 may. 2026.