“ANALYSIS OF THE REASONS FOR THE PRODUCTION OF SECONDARY GASES AND THEIR PHYSICAL-CHEMICAL PROPERTIES IN EXISTING CHEMICAL INDUSTRY ENTERPRISES IN THE FERGANA VALLEY”, American Journals, vol. 13, pp. 14–20, Jun. 2023, Accessed: May 01, 2026. [Online]. Available: https://americanjournal.org/index.php/ajtas/article/view/995