Hayati, Eka Inggrit Nur, and Dwi Astuti. “Pengaruh Effective Microoganism-4 (EM-4) Terhadap Kadar BOD (Biologycal Oxygen Demand) Pada Limbah Cair Tahu”. JIKES : Jurnal Ilmu Kesehatan 5, no. 1 (October 23, 2026): 1736–1745. Accessed November 5, 2026. https://yptb.org/index.php/jik/article/view/2936.