AMIRBEKULY, Y.; RAKHIMBEKOVA, A.E. Structure of the added value chain as a factor of competitiveness of the sector . BUKETOV BUSINESS REVIEW, [S. l.], v. 89, n. 1, p. 40–48, 2018. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/429. Acesso em: 4 feb. 2026.