KOZACHENKO, Ph. D. Ivan Y.; GUBAREVA, Ph. D. Anna; KOVALENKO, Ph. D. Kseniya. International popularization of financial pyramids: theoretical and practical aspects. Universidad y Sociedad, [S. l.], v. 9, n. 3, p. 261–264, 2017. Disponível em: https://rus.ucf.edu.cu/index.php/rus/article/view/639. Acesso em: 9 may. 2025.