Rizky, Syiffah (2020) STUDI KOMPARATIF EFEKTIVITAS PENYISIHAN ION LOGAM KROMIUM (Cr) OLEH ADSORBEN FLY ASH BATU BARA DAN BULU AYAM = COMPARATIVE STUDY OF THE EFFECTIVENESS OF CHROMIUM METAL ION ELIMINATIONS USING BRICK FLY ASH AND CHICKEN FEATHERS. Skripsi thesis, Universitas Hasanuddin.