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Gaya APA

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

Gaya MLA

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