“THE RESEARCH OF THE WETHER RESISTANT GYPSUM- ASH-ALKALINE ARBOLIT STRUCTURE BY SCANNING ELECTRON MICROSCOPY”, WS, vol. 1, no. 3(7), pp. 98–102, Mar. 2016, Accessed: Nov. 01, 2026. [Online]. Available: https://rspublisher.org/index.php/ws/article/view/1001