Mukushev А.Б., Esenova Г.Ж., Dosaliev Б.А., Mukushev С.Б., and Adilbekova Б.А. “Modeling the Financial Pyramid through the Mathcad”. ECONOMIC Series of the Bulletin of the L N Gumilyov ENU, no. 3 (January 18, 2023): 56–62. Accessed May 7, 2024. https://bulecon.enu.kz/index.php/main/article/view/101.