SIAGIAN, S. P. (1996). Etika Bisnis Sondang P.Siagian. PT. Elex Media Komputindo.
Chicago Style (17th ed.) CitationSIAGIAN, Sondang P. Etika Bisnis Sondang P.Siagian. PT. Elex Media Komputindo, 1996.
MLA (8th ed.) CitationSIAGIAN, Sondang P. Etika Bisnis Sondang P.Siagian. PT. Elex Media Komputindo, 1996.
Warning: These citations may not always be 100% accurate.