DIGITAL MARKETING RESEARCH TOOLS AS A RESERVE FOR IMPROVING THE PERFORMANCE OF MARKETING ACTIVITIES Authors L. Larka https://orcid.org/0000-0002-8184-5464 DOI: https://doi.org/10.32702/2307-2105.2026.2.65 Downloads pdf (Українська) Published 2026-02-19 Issue No. 2 (2026): Efektyvna ekonomika Section Статті