PUTRA, Rendy Pratama; GINTING, Delovita; SYAHPUTRA, Romi Fadli. EFEKTIVITAS ADSORBEN LIMBAH AMPAS KOPI PADA LIMBAH CAIR KELAPA SAWIT. JOURNAL ONLINE OF PHYSICS, [S. l.], v. 11, n. 2, p. 70–76, 2026. DOI: 10.22437/jop.v11i2.53154. Disponível em: https://www.online-journal.unja.ac.id/jop/article/view/53154. Acesso em: 8 may. 2026.