SIREGAR , Hari Ananda Syahputra; WINARDI, Rafael remit. Effectiveness of Acid-Activated Oil Palm Fiber and Quartz Sand Adsorbents in Reducing Wastewater Pollutant Parameters. RESWARA: Jurnal Riset Ilmu Teknik, [S. l.], v. 4, n. 3, p. 420–433, 2026. DOI: 10.70716/reswara.v4i3.662. Disponível em: https://journal.kalibra.or.id/index.php/reswara/article/view/662. Acesso em: 22 oct. 2026.