UMIRZAKOVA, D.K.; MEGITS, N. Theoretical approaches to the classification of the functioning of supply chains. BUKETOV BUSINESS REVIEW, [S. l.], v. 88, n. 4, p. 205–214, 2017. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/394. Acesso em: 10 dec. 2025.