СТАДНІЧЕНКО, В. В.; ПЕТРАШЕВСЬКА, В. П. FORMATION OF A LOYALTY SYSTEM IN THE TELECOMMUNICATIONS SERVICES MARKET. Journal of Strategic Economic Research, [S. l.], n. 4, p. 70–79, 2026. DOI: 10.30857/2786-5398.2026.4.6. Disponível em: https://jrnl.knutd.edu.ua/index.php/jseconres/article/view/2125. Acesso em: 17 oct. 2026.