Chrząścik, M. 2018. KEY COMMUNICATION BARRIERS IN MANAGING THE PRODUCTION PROCESSES OF AUDIOVISUAL ADVERTISING IN THE MULTIMEDIA DESIGN SERVICES SECTOR. The Scientific Journal European Policies, Finance and Marketing. 20(69) (Dec. 2018), 37–47. DOI:https://doi.org/10.22630/PEFIM.2018.20.69.27.