Unit 3
Griga, Michael and Raymund Krauleidis: Preparing and reading balance sheets for Dummies, Wiley-VCH Verlag 2016.
Kelly, Jane E.: Bookkeeping and Accounting All-in-One For Dummies (UK Edition), Wiley Publishing, 2015.
Singh, Shiv and Stephanie Diamond: Social Media Marketing For Dummies, 3rd Edition, Wiley Publishing, 2015.
https://buffer.com/library/marketing-personas-beginners-guide
https://www.allbusiness.com/the-five-basic-methods-of-market-research-1287-1.html
https://www.wikihow.com/Run-a-Focus-Group
https://www.onlinemarketing-praxis.de/glossar/usability-test-im-labor
https://www.eresult.de/ux-testing/methoden/usability-test-im-labor/