KLASIFIKASI DAERAH TERCEMAR LIMBAH ACID SLUDGE MENGGUNAKAN METODE SPECTRAL MIXTURE ANALYSIS BERBASIS DATA LANDSAT 8 (CLASSIFICATION OF ACID SLUDGE WASTE CONTAMINATED AREA USING SPECTRAL MIXTURE ANALYSIS METHOD BASED ON LANDSAT 8 DATA) - Haryani, Nanik Suryo (Indonesian National Institute of Aeronautics and Space (LAPAN), 2015)