In 4 Schritten Zur Richtigen E-Mail-Marketing-SoftwareBeatrice Höppner, Antje Engstler, Mirjam Kienzle · First published 2017Open the Tome
Search-Engine-Advertising OptimierenKristin Mortell, Antje Engstler · First published 2017Open the Tome
Erfolg im Mobile-CommerceSara Herrera, Antje Engstler, Mirjam Kienzle · First published 2016Open the Tome
Handelskraft 2014Christian Grötsch, Cornelia Weiss, Antje Engstler · First published 2013Open the Tome
Handelskraft 2013Christian Groetsch, Cornelia Weiss, Antje Engstler · First published 2012Open the Tome
