Mukushev А. .; Esenova Г. .; Dosaliev Б. .; Mukushev С.; Adilbekova Б. . Modeling the financial pyramid through the Mathcad. Economic series of the Bulletin of L.N. Gumilyov ENU, [S. l.], n. 3, p. 56–62, 2023. Disponível em: https://bulecon.enu.kz/index.php/main/article/view/101. Acesso em: 24 dec. 2025.