Khabiyev, A.T., O.S Baigenzhenov, S.B. Yulussov, M.S. Akbarov, and M.M. Sydykanov. “Study of Leaching Processes of Sintered Black Shale Ore”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex use of mineral resources 315, no. 4 (December 15, 2020): 5–10. Accessed November 22, 2024. http://kims-imio.com/index.php/main/article/view/101.