KHAMED MUSTAPHA, KOUT MEBAREK. E-Commerce, Concepts and Mechanisms. European Economic Letters (EEL), [S. l.], v. 14, n. 2, p. 2762–2771, 2024. Disponível em: https://www.eelet.org.uk/index.php/journal/article/view/1630. Acesso em: 19 nov. 2025.