“INVESTIGATION OF THE POSSIBILITY OF DISSOLUTION OF NEPHELENE SYENITE THROUGH SODIUM SULFATE IGNITION METHOD ” (2023) PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE KYRGYZ REPUBLIC, (7), pp. 69–74. Available at: https://journal.uia.gov.kg/index.php/main/article/view/488 (Accessed: 19 August 2026).