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Harwiyanti, Retno Dwi and , Heru Subaris Kasjono, SKM., M.Kes. and , Dwi Astuti, SKM., M.Kes (2015) KEEFEKTIFAN DOSIS KOAGULAN POLY ALUMINIUM CHLORIDE (PAC) DALAM MENURUNKAN KADAR CHEMICAL OXYGEN DEMAND (COD) PADA AIR LIMBAH LAUNDRY. Skripsi thesis, UNIVERSITAS MUHAMMADIYAH SURAKARTA.