https://ronald-wissler.de/wp-content/uploads/2017/07/Cover-Design-„Management-by-Blending-eine-badische-Business-Soap“-e1500385932335.jpg15001800olgahttps://ronald-wissler.de/wp-content/uploads/2023/04/Logo_Ronald_Wissler_Visuelle_Kommunikation_D.svgolga2017-03-02 13:32:152017-07-23 22:15:25Cover Design „Management by Blending - eine badische Business Soap“