S, M. K., Z. E. B, and M. A. S. “Policy Formation of Regional Budgets As a Key Tool of Economic Inequality Leveling of Kazakhstan`s Regions”. Farabi Journal of Social Sciences, vol. 3, no. 1-2, Sept. 2019, pp. 6-12, https://jhumansoc-sc.kaznu.kz/index.php/1-eurasian/article/view/325.