PEMANFAATAN ECENG GONDOK {Eichhomia crassipes (Mart) Solm} SEBAGAI TEKNIK ALTERNATIF DALAM PENGOLAHAN BIOLOGIS AIR LIMBAH ASAL RUMAH PEMOTONGAN HEWAN (RPH) PESANGGARAN DENPASAR - BALI [The Use of Water Hyacinth {Eichhomia crassipes (Mart) Solm} as an Alternative Technique for the Wastewater Biolgical Treatment at Pesanggaran Slaughterhouse] - Suardana, IW (Research Center for Biology-Indonesian Institute of Sciences, 2016)