MELANIA, ANNISA (2025) EFEKTIVITAS MEDIA FILTRASI KARBON AKTIF KAYU KESAMBI DAN ABU SEKAM PADI DALAM MENURUNKAN AIR SADAH (CACO₃) MENJADI AIR BERSIH DI DESA LANCA KABUPATEN BONE = THE EFFECTIVENESS OF ACTIVATED CARBON FILTRATION MEDIA FROM KESAMBI WOOD AND RICE HUSK ASH IN REDUCING HARD WATER (CACO₃) INTO CLEAN WATER IN LANKA VILLAGE, BONE REGENCY. Thesis thesis, Universitas Hasanuddin.