Karpenko, E.M., and N.S. Perova. “The Analysis of the Level and Quality of Life of Post-Soviet Countries ”. BUKETOV BUSINESS REVIEW 90, no. 2 (June 30, 2018): 233–240. Accessed February 4, 2026. https://bbr.buketov.edu.kz/economy-vestnik/article/view/512.