Berens, W., & Schmitting, W. (2018). Controlling im E-Business: Rueckkehr zur Rationalitaet. Peter Lang International Academic Publishing Group.
Chicago Style (17. basım) AtıfBerens, Wolfgang, ve Walter Schmitting. Controlling Im E-Business: Rueckkehr Zur Rationalitaet. Bern: Peter Lang International Academic Publishing Group, 2018.
MLA (9th ed.) AtıfBerens, Wolfgang, ve Walter Schmitting. Controlling Im E-Business: Rueckkehr Zur Rationalitaet. Peter Lang International Academic Publishing Group, 2018.
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