Spankulova, L.S., B.M. Mukhamediyev, and Y.B. Bukatov. “Peculiarities of Demand for Medicines and Assessment of the Consequences of Introducing Co-Payment in Kazakhstan ”. BUKETOV BUSINESS REVIEW 11329, no. 1 (March 31, 2024): 102–110. Accessed December 8, 2025. https://bbr.buketov.edu.kz/economy-vestnik/article/view/867.