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Gaya APA

Keraf, A. (2010). Etika Bisnis : Tuntutan dan Relevansinya . Yogyakarta: Yogyakarta: Kanisius.

Gaya MLA

Keraf, A.Sonny. "Etika Bisnis : Tuntutan dan Relevansinya". Yogyakarta: Yogyakarta: Kanisius, 2010. Text.