JUMASHEVA, S.M. Modern models of managing quality of educational services in universities. BUKETOV BUSINESS REVIEW, [S. l.], v. 91, n. 3, p. 72–78, 2018. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/578. Acesso em: 10 dec. 2025.