Dyussembekova, G., G. Bayandina, D. Zakirova, R. Sartova, and M. Kalmenova. “The Electric Energy Sector of Kazakhstan: State and Vision for the Country Taking into Account the International Trends”. International Journal of Energy Economics and Policy, vol. 9, no. 3, Apr. 2019, pp. 179-86, https://www.econjournals.com/index.php/ijeep/article/view/7741.