Nisbah Bobot Zeolit dan Arang Sekam Padi sebagai Adsorben dalam Pengolahan Limbah Cair Laboratorium Kimia = Weight Ratio of Zeolite and Rice Husk Charcoal as Adsorbant in the Chemical Laboratory’s Wastewater Treatment - Lakahina, Olvi (Program Studi Kimia FSM-UKSW, 2017)