ZHOLAYEVA, M.A.; CHAYA, V.T. Business tax burden in the non-linear system. BUKETOV BUSINESS REVIEW, [S. l.], v. 95, n. 3, p. 294–300, 2019. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/269. Acesso em: 7 dec. 2025.