Keraf, A., & Keraf, A. (1998). Etika bisnis: Tuntutan dan relevansinya A.Sonny Keraf. Kanisius.
Chicago Style (17th ed.) CitationKeraf, A.sonny, and A.sonny Keraf. Etika Bisnis: Tuntutan Dan Relevansinya A.Sonny Keraf. Kanisius, 1998.
MLA (8th ed.) CitationKeraf, A.sonny, and A.sonny Keraf. Etika Bisnis: Tuntutan Dan Relevansinya A.Sonny Keraf. Kanisius, 1998.
Warning: These citations may not always be 100% accurate.