Zhupysheva, A.O., and S.B. Makysh. “Conducting a State Environmental Audit at Industrial Enterprises of the Karaganda Region”. Economic series of the Bulletin of L.N. Gumilyov ENU, no. 1 (January 27, 2023): 181–191. Accessed January 3, 2026. https://bulecon.enu.kz/index.php/main/article/view/371.