Akhmetzhanov, B., Tazhibekova, K. and Shametova А. (2019) “Analysis and evaluation of the economic effect of coal use for Ferroalloy and sinter production ”, BUKETOV BUSINESS REVIEW, 96(4), pp. 126–136. Available at: https://bbr.buketov.edu.kz/economy-vestnik/article/view/344 (Accessed: 6 December 2025).