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Gaya APA
Suratmo, G.(2009).Analisis Mengenai Dampak Lingkungan .Yogyakarta:Yogyakarta: UGM.
Gaya MLA
Suratmo, Gunarwan."Analisis Mengenai Dampak Lingkungan".Yogyakarta:Yogyakarta: UGM,2009.Text.