Keraf, A. S. (2002). Etika Lingkungan. Kompas.
Chicago Style (17th ed.) CitationKeraf, A. Sonny. Etika Lingkungan. Kompas, 2002.
MLA (8th ed.) CitationKeraf, A. Sonny. Etika Lingkungan. Kompas, 2002.
Warning: These citations may not always be 100% accurate.