Angjusheva, Biljana, Vojo Jovanov, and Emilija Fidanchevski. “Conversion of Coal Fly Ash Glass into Glass-Ceramics by Controlled Thermal Treatment”. Macedonian Journal of Chemistry and Chemical Engineering 40, no. 2 (December 15, 2021): 307–319. Accessed April 19, 2024. https://mjcce.org.mk/index.php/MJCCE/article/view/2429.