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		Indra Wahyuni, N., 		Budiarsa Suyasa, I., & 		Mahardika, I.
(2015).
 EFEKTIVITAS SISTEM BIOFILTER AEROB DALAM MENURUNKAN KADAR AMONIA PADA AIR LIMBAH.
<em>ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal Of Environmental Science), 8</em>(1), 79 - 85.
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