STASUK, N.; STASUK, O.; YAKOVENKO, R. Multilevel marketing: problems and prospects. Skhid, [S. l.], n. 1(115), p. 97–100, 2013. DOI: 10.21847/1728-9343.2012.1(115).16364. Disponível em: https://skhid.kubg.edu.ua/article/view/16364. Acesso em: 2 may. 2024.