Kairbekov, Zh., E. Aubakirov, N. Zhalhasuly, and Zh. Eshova. “Way of Effective Application of Brown Coal from Kiakty Deposir”. Chemical Bulletin of Kazakh National University 64, no. 4 (December 1, 2011): 107-111. Accessed November 14, 2024. https://chemistry.kz/bulletin/index.php/kaznu/article/view/509.