CONCEPTUAL 3D MODEL OF TARGET AUDIENCE SEGMENTATION IN THE MARKETING COMMUNICATIONS SYSTEM OF PUBLIC AUTHORITIES Authors V. Shynkarenko https://orcid.org/0009-0006-2371-5449 DOI: https://doi.org/10.32702/2306-6814.2026.9.551 Downloads pdf Published 2026-05-12 Issue No. 9 (2026): Investytsiyi: praktyka ta dosvid Section Статті