Zhagyparova А.О., and Nauryzbekova Д.А. “Ғinancing of Mining Industry”. Economic series of the Bulletin of L.N. Gumilyov ENU, no. 2 (January 23, 2023): 105–111. Accessed January 20, 2026. https://bulecon.enu.kz/index.php/main/article/view/220.