KUCHAROV, A. DEVELOPMENT OF COAL ENRICHMENT AND GAS EXTRACTION TECHNOLOGY FOR THE USE OF CONSTRUCTION MATERIALS INDUSTRIAL ENTERPRISES: DEVELOPMENT OF COAL ENRICHMENT AND GAS EXTRACTION TECHNOLOGY FOR THE USE OF CONSTRUCTION MATERIALS INDUSTRIAL ENTERPRISES. Scientific and Technical Journal of Namangan Institute of Engineering and Technology, [S. l.], v. 9, n. 4, p. 191–197, 2024. DOI: 10.61151/stjniet.v9i4.552. Disponível em: http://niet.uz/index.php/nj/article/view/552. Acesso em: 14 apr. 2025.