AKHMETZHANOV, B.; TAZHIBEKOVA, K.B.; Shametova А.А. Analysis and evaluation of the economic effect of coal use for Ferroalloy and sinter production . BUKETOV BUSINESS REVIEW, [S. l.], v. 96, n. 4, p. 126–136, 2019. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/344. Acesso em: 6 dec. 2025.