Omirtay А. and Ongdash А. . (2023) “Financing environmental clean and renewable energy sources for sustainable development”, Economic series of the Bulletin of L.N. Gumilyov ENU, (2), pp. 209–220. Available at: https://bulecon.enu.kz/index.php/main/article/view/202 (Accessed: 3 February 2026).