MOLCHANOVA Е.; KOVTONIUK К. Mobile telephony in the digital age. "INTERNATIONAL·SCIENTIFIC-·PRACTICAL·JOURNAL·COMMODITIES·AND·MARKETS", [S. l.], v. 37, n. 1, p. 62–75, 2021. DOI: 10.31617/tr.knute.2021(37)05. Disponível em: https://journals.knute.edu.ua/commodities-and-markets/article/view/923. Acesso em: 3 may. 2024.