Supported by the following organizations
This is to certify that Piotr Kostrzewa successfully completed and received a passing grade in SN401x: Successful Negotiation: Essential Strategies and Skills a course of study offered by MichiganX, an online learning initiative of the University of Michigan.
Noted by
George Siedel
Williamson Family Professor of Business Administration Thurnau Professor of Business Law Ross School of Business, University of Michigan
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- Verified Certificate Issued September 23, 2024
- Valid Certificate ID 6c7ac9e08d1b4b55a0521596c6ce4bc2