Do, Nga, Huy Tran, Huong Doan, Nghiep Pham, Kien Le, and Phung Le. “Advanced Fabrication of Lightweight Aerogels from Fly Ash for Thermal Insulation”. VNUHCM Journal of Engineering and Technology 4, no. 1 (February 13, 2021): 637-644. Accessed April 27, 2024. http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/786.