LISUN, Yanina; SANETRA-PÓŁGRABI, Sabina. Diagnostics of the maturity of the social media ecosystem of educational services providers – perspective of social security. Scientific Journal of Bielsko-Biala School of Finance and Law, Bielsko-Biała, PL, v. 29, n. 3, 2025. DOI: 10.19192/wsfip.sj3.2025.6. Disponível em: https://www.asej.eu/index.php/asej/article/view/930. Acesso em: 3 dec. 2025.