DIAGNOSTICS OF KEY TRENDS OF EFFECTIVE DEVELOPMENT OF THE MARKET OF TELECOMMUNICATION SERVICES COMPANIES Authors А. Goloborodko https://orcid.org/0000-0001-5416-0526 K. Khavrova https://orcid.org/0000-0001-9376-0700 DOI: https://doi.org/10.32702/2307-2105.2023.10.1 Downloads pdf (Українська) Published 2023-10-19 Issue No. 10 (2023): Efektyvna ekonomika Section Статті