“Experimental Test Methods for the Properties of Building Materials Based on Class "f" and ‘c’ Ash from a Thermal Power Plant”. Международный научный журнал «Инженер» 1, no. 1 (August 7, 2026): 65–68. Accessed August 10, 2026. https://engineer.tstu.uz/index.php/engineer-tstu/article/view/473.