Smailov, B.T., R.K. Andarova, and Ye.A. Vechkinzova. “Cumulative Nature of the Health system’s Performance and Applied Models of Its Organization ”. BUKETOV BUSINESS REVIEW 102, no. 2 (June 30, 2021): 108–119. Accessed December 8, 2025. https://bbr.buketov.edu.kz/economy-vestnik/article/view/323.